Testers
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HI98100 Checker® Plus pH Tester
fisher brand
Better Features for Better Testing
An onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.
Pocket Sized
The compact size makes the HI98100 Checker Plus pH tester ideal for on-the-go testing. A large LCD display provides at-a-glance readings from any angle and single button operation streamlines the testing process for any user.
Long Battery Life
The included CR2032 Li-ion battery provides up to 1000 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement.
View DetailsYour measurements require detailed attention; so should your electrode. The HI98100 features a replaceable electrode that is ideal for general pH measurements.
Tapered Electrode Design
The supplied HI1271 pH electrode is 103 mm long and tapers to an 8 mm diameter at the sensing end to easily fit into test tubes, vials, and other containers with a small opening..
Plastic Body
The plastic body is significantly reduces necessary maintenance.
No-hassle Replacement
Don’t let a broken electrode stop you from testing. Simply unscrew the old electrode, and screw on a new one for just $15.
We believe that buying a tester should be simple. Your HI98100 Checker Plus pH tester is equipped with everything you need for successful testing right out of the box.
Electrode Cleaning Solution
Your Tester comes with cleaning solution that has been engineered to keep your electrode free from build up. This concentrated combination of detergents cleans your tester quickly and effectively so that your tester stays in optimum condition
pH 4 & 7 Buffer Sachets
When performing a pH calibration it is important that the correct buffers are used. We include some start buffers to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.
Storage Solution
Proper storage of your electrode will ensure reliable measurements and a long electrode life. Our storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth.
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HI98103 Checker® pH Tester with 0.1 pH Resolution
fisher brand
Better Features for Better Testing
An onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.
Pocket Sized
The compact size makes the HI98103 Checker pH tester ideal for on-the-go testing. A large LCD display provides at-a-glance readings from any angle and single button operation streamlines the testing process for any user.
Long Battery Life
The included CR2032 Li-ion battery provides up to 1000 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement.
View DetailsYour measurements require detailed attention; so should your electrode. The HI98103 features a replaceable electrode that is ideal for general pH measurements.
Tapered Electrode Design
The supplied HI1271 pH electrode is 103 mm long and tapers to an 8 mm diameter at the sensing end to easily fit into test tubes, vials, and other containers with a small opening..
Plastic Body
The plastic body is significantly reduces necessary maintenance.
No-hassle Replacement
Don’t let a broken electrode stop you from testing. Simply unscrew the old electrode, and screw on a new one for just $15.
We believe that buying a tester should be simple. Your HI98103 Checker pH tester is equipped with everything you need for successful testing right out of the box.
Electrode Cleaning Solution
Your Tester comes with cleaning solution that has been engineered to keep your electrode free from build up. This concentrated combination of detergents cleans your tester quickly and effectively so that your tester stays in optimum condition.
pH 4 & 7 Buffer Sachets
When performing a pH calibration it is important that the correct buffers are used. We include some start buffers to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.
Storage Solution
Proper storage of your electrode will ensure reliable measurements and a long electrode life. Our storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth.
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HI981030 GroLine Soil pH Tester
fisher brand
Better Features for Better Testing
An onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.
Pocket Sized
The compact size makes the Soil pH Tester ideal for on-the-go testing. A large LCD display provides at-a-glance readings from any angle and single button operation streamlines the testing process for any user.
Long Battery Life
The included CR2032 Li-ion battery provides up to 1000 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement.
View DetailsYour measurements require detailed attention; so should your electrode. The HI981030 Soil pH Tester features a built-in probe that has been carefully designed for taking direct pH measurements in soil for environmental and agricultural testing.
Unique Open Junction with Removable Sleeve
When the readings become slow, simple remove the sleeve for quick cleaning and new electrolyte. Having a clean probe with a fresh reference electrolyte will improve performance and extend the life of the tester
Conical Glass Tip
The conical shaped tip design allows for penetration into soil and soil slurries.
PVDF Body
Polyvinylidene fluoride (PVDF) is a durable plastic that is resistant to most chemicals and solvents used for disinfection, including chlorine (bleach).
We believe that buying a tester should be simple. Your Soil pH Tester is equipped with everything you need for successful testing right out of the box.
Cleaning Solution for Soil and Humus Deposits
Your Soil pH Tester comes with cleaning solution that has been engineered to keep your electrode free from organic materials found in soil. This concentrated combination of detergents cleans your tester quickly and effectively so that your tester stays in optimum condition.
pH 4 & 7 Buffer Sachets
When performing a pH calibration it is important that the correct buffers are used. We include some start buffers to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.
Storage Solution
Proper storage of your electrode will ensure reliable measurements and a long electrode life. Our storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth.
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HI981032 Cheese pH Tester
fisher brand
Better Features for Better Testing
An onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.
Pocket Sized
The compact size makes the Cheese pH Tester ideal for on-the-go testing. A large LCD display provides at-a-glance readings from any angle and single button operation streamlines the testing process for any user.
Long Battery Life
The included CR2032 Li-ion battery provides up to 1000 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement.
View DetailsYour measurements require detailed attention; so should your electrode. The HI981032 Cheese pH Tester features a built-in probe that has been carefully designed to measure the pH in almost all types of cheeses and curds.
Open Junction
The open junction design reduces clogging from suspended solids and proteins found in cheese products for a more stable pH measurement and reduced maintenance.
Conical Glass Tip
The conical shaped tip design allows for penetration into solids, semi solids, and emulsions for the direct measurement of pH in a variety of milk based products used during the cheese making process. Low Temperature (LT) glass is used for quicker results at lower temperatures.
PVDF Body
Polyvinylidene fluoride (PVDF) is a food grade plastic that is resistant to most chemicals and solvents used for disinfection in the food sector, including chlorine (bleach).
We believe that buying a tester should be simple. Your Cheese pH Tester is equipped with everything you need for successful testing right out of the box.
Cleaning Solution for Cheese Deposits
Your Cheese pH Tester comes with cleaning solution that has been engineered to keep your electrode free from cheese build up. This concentrated combination of detergents cleans your tester quickly and effectively so that your tester stays in optimum condition.
pH 4 & 7 Buffer Sachets
When performing a pH calibration it is important that the correct buffers are used. We include some start buffers to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.
Storage Solution
Proper storage of your electrode will ensure reliable measurements and a long electrode life. Our storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth.
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HI98107 Waterproof Pocket pH Tester with 0.1 Resolution – pHep®
fisher brand
Details
View DetailsThe HI98107 features a large multi-level LCD which displays both pH and temperature readings simultaneously. The pH readings are displayed with a 0.1 pH resolution and with an accuracy of ±0.1 pH. The pH range of the HI98107 is from 0.0 to 14.0 pH. An exposed temperature sensor allows for rapid automatic temperature compensated pH measurements. Temperature can be set to display in ℃ or ℉. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.
The pH electrode uses a unique reference cell design that utilizes an extractable cloth junction. A clogged junction will typically exhibit erratic readings that will not stabilize. Simply extracting a small portion of cloth from the water pH teter will clear any clog by exposing a fresh, clean surface. The ability to clear any clogging will extend the life of the pH electrode.
Calibration is performed by pressing the dedicated calibration button. Once in calibration mode the pH electrode can be calibrated to 1 or 2 points using the pre-programmed standard buffers (pH 4.01, 7.01,10.01). When the standard value is recognized and stability is reached, the meter automatically accepts and stores the calibration value.
Setup options include automatic shut off timing and temperature unit displayed. Automatic shut-off options are to turn the water pH meter off after 8 minutes, 60 minutes, or disabled. To enter the setup mode the user presses a button located in the battery compartment.
Features/Benefits:
Slim, Ergonomic Design
- With rounded edges and a case that is only 17 mm (0.7”) thick, the HI98107 is thin and fits comfortably in the hand or pocket.
Large Multi-level LCD
- The LCD is 29 mm (1.125”) x 20 mm (0.81”) allowing the user to easily read both the pH and temperature simultaneously.
Two-button Operation
- One for ON/OFF, the other for calibration.
Integrated Temperature Sensor
- Built in temperature sensor allows for temperature compensated measurements. Temperature can be displayed in either oC or oF.
Automatic Calibration
- Automatic calibration to one or two points using standard buffers (pH 4.01, 7.01 and 10.01).
Stability Indicator
- A clock tag stability indicator will disappear to alert the user when the reading is stable.
Automatic Shut-off
- User-selectable time until water pH meter shuts off to conserve battery life. Options are 8 min, 60 min or disabled.
Low Battery Indicator
- Low battery indicator that is displayed when less than 10% battery life is remaining.
Battery % Level at Startup
- At start-up, all the LCD segments are displayed for 1 second, then the percent indication of the remaining battery life is displayed
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HI98108 pHep®+ Pocket pH Tester with 0.01 pH Resolution
fisher brand
Details
View DetailsThe HI98108 pocket pH tester features a large multi-level LCD which displays both pH and temperature readings simultaneously. The pH readings are displayed with a 0.01 pH resolution and with an accuracy of ±0.10 pH. The pH range of the HI98108 is from 0.00 to 14.00 pH. An exposed temperature sensor allows for rapid automatic temperature compensated pH measurements. Temperature can be set to display in ℃ or ℉. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.
The pH electrode uses a unique reference cell design that utilizes an extractable cloth junction. A clogged junction will typically exhibit erratic readings that will not stabilize. Simply extracting a small portion of cloth from the meter will clear any clog by exposing a fresh, clean surface. The ability to clear any clogging will extend the life of the pH electrode.
Calibration is performed by pressing the dedicated calibration button. Once in calibration mode the pH electrode can be calibrated to 1 or 2 points using the pre-programmed standard buffers (pH 4.01, 7.01,10.01). When the standard value is recognized and stability is reached, the meter automatically accepts and stores the calibration value.
Setup options include automatic shut off timing and temperature unit displayed. Automatic shut-off options are to turn the pH level tester off after 8 minutes, 60 minutes, or disabled. To enter the setup mode the user presses a button located in the battery compartment.
Features/Benefits:
Slim, Ergonomic Design
- With rounded edges and a case that is only 17 mm (0.7”) thick, the HI98108 is thin and fits comfortably in the hand or pocket.
Large Multi-level LCD
- The LCD is 29 mm (1.125”) x 20 mm (0.81”) allowing the user to easily read both the pH and temperature simultaneously.
Two-button Operation
- One for ON/OFF, the other for calibration.
Integrated Temperature Sensor
- Built in temperature sensor allows for Temperature Compensated measurements. Temperature can be displayed in either oC or oF.
Automatic Calibration
- Automatic calibration to one or two points using standard buffers (pH 4.01, 7.01 and 10.01).
Stability Indicator
- A clock tag stability indicator will disappear to alert the user when the reading is stable.
Automatic Shut-off
- User-selectable time until meter shuts off to conserve battery life. Options are 8 min, 60 min or disabled.
Low Battery Indicator
- Low battery indicator that is displayed when less than 10% battery life is remaining.
Battery % Level at Startup
- At start-up, all the LCD segments are displayed for 1 second, then the percent indication of the remaining battery life is displayed.
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HI98118 GroLine Waterproof Hydroponic pH Tester
fisher brand
View DetailsDetails
The HI98118 GroLine pocket pH Tester is an affordable way to measure the pH of hydroponic nutrient solutions. The maintaining of an optimal pH is essential to maximize optimum growth. The general rule of thumb is that as pH increases the solubility of minerals and nutrients decrease. It is important that nutrients are soluble for plants to uptake and use for growth. The pH of nutrient solution can also affect the bacteria that fix nitrogen for the plant to use. Every plant has optimum pH levels for growth. Below is a table for the ideal pH range for a variety of plants.
The HI98118 can be used to measure the pH in soils as well as nutrient solutions. The North Carolina State University has outlined a procedure known as Pour Through Sampling Method. This method is used for container plants in which 50 ml of leachate is collected from a thoroughly watered plant and then tested.
To measure the pH of soil as a slurry therecommends a mixture of 1 part soil to 1 part water. The slurry is allowed to rest for 10 minutes so that the solids will settle out and the pH of liquid above can be measured.
The HI98118 is an advanced meter while maintaining simplicity. The front of the meter has two buttons. One is for turning the meter on and off while the other is used to enter the calibration mode. There is a third button in the battery compartment that allows the user to customize the meter to their preference. Customization includes temperature readout in oC or oF, automatic shut off selectable from 8 minutes, 60 minutes or disabled, and lastly the choice of using Hanna’s Quick Cal pH/EC standard or traditional buffers values of pH 4.01, 7.01 and 10.01.
The HI98118 features a unique extractable cloth junction. The reference junction of a pH electrode, also known as a salt bridge, provides an electrical pathway between the internal reference cell and the sample. Any clogging of the junction will result in a disruption of the electrical pathway. When this happens the readings will be erratic and take a very long time to stabilize. With the Hanna extractable junction a small portion of 1/8″ is extracted or pulled to expose a clean surface. With the junction renewed the clogging is cleared allowing the meter to still be used. The overall length of the junction is about 1″ so the junction should only be extracted periodically
Features at-a-glance
Built in temperature sensor for Automatic Temperature Compensated measurements.
Renewable junction to clear any clogging that causes readings to drift and be erratic .
Stability indicator that disappears once a stable reading is obtained .
Automatic calibration to one or two points at a push of a button.
Uses Hanna’s Quick Cal pH/EC standard with a pH value of 6.86. The standard can also be used to calibrate conductivity meters to 5,000 μS/cm .
Battery % level remaining displayed at start up.
Low battery indicator that is displayed when less than 10% battery life is remaining.
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HI98120 ORP/Temperature Tester
fisher brand
Details
Similar to a pH measurement that quantifies the how acidic or alkaline solutions are, ORP (Oxidation Reduction Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. Oxidizing and reducing reagents are used to participate in chemical reactions known as a redox reaction.
An important part of the ORP probe is to have a sensor that is chemically inert; meaning it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold. Both are commonly used in the construction of ORP probes.
The platinum sensor is often preferred because it is mechanically simpler to produce. Platinum can be welded to glass and also has a similiar thermal expansion coefficient. Sensors made of gold cannot be welded to the glass and are often placed in plastic supports applied to the glass or plastic tube by means of tiny elastomeric bungs.
Many industries rely upon ORP measurements including swimming pools, food processing, boilers and cooling towers, and plating. The measurement of ORP helps the user monitor the effectiveness of disinfecting compounds including chlorine and ozone. ORP is also used to monitor redox reactions including the use of bisulfite in the reduction of hexavalent chromium to trivalent chromium in plating wastewater.
Features at-a-glance:
Waterproof
- IP67 rated
- Protects the internal electronics of the meter from an ingress of water in the event that the meter is dropped into a tank or a body of water.
Stability indicator
- HI98120 features a stability indicator tag on the LCD that will disappear once the reading stabilizes.
Replaceable electrode
- An electrode last approximately one to two years. It is possible to replace just the electrode and not have to buy a completely new meter.
- The HI73120 ORP electrode is a simple cartridge design allows the sensor to be easily replaced whether in the lab or in the field.
HOLD feature
- Allows the reading to be frozen so that the reading can be documented.
Auto-shut off
- The meter automatically turns itself off after 8 minutes of use in order to conserve battery life in the event the meter is accidently left on.
Battery % level
- When the meter is turned on the battery % level is displayed as a percentage.
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HI98121 pH/ORP/Temperature Combo Tester
fisher brand
Details
The HI98121 is a lightweight ergonomically designed tester. This pH and ORP tester is designed to float making it ideal for taking ORP measurements virtually anywhere. With the HI98121 it is possible to monitor both pH and ORP at the same time. The HI98121 is commonly used to monitor pH and chlorine for many applications including swimming, food sanitization, plating wastewater treatment, and cooling tower water treatment.
By definition pH is the measurement of the voltage generated by an electrochemical cell at zero current. The potential generated is proportional to the thermodynamic activity of the ion being measured.
Similar to a pH measurement that quantifies the how acidic or alkaline solutions are, ORP (Oxidation Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. Oxidizing and reducing reagents are used to participate in chemical reactions known as a redox reaction.
An ORP meter must be chemically inert; it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors.
Features at-a-glance:
- Waterproof
- Automatic Temperature Compensation
- HOLD feature
- Simple to use
- Economical
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HI98121 pH/ORP/Temperature Combo Tester
fisher brand
Details
The HI98121 is a lightweight ergonomically designed tester. This pH and ORP tester is designed to float making it ideal for taking ORP measurements virtually anywhere. With the HI98121 it is possible to monitor both pH and ORP at the same time. The HI98121 is commonly used to monitor pH and chlorine for many applications including swimming, food sanitization, plating wastewater treatment, and cooling tower water treatment.
By definition pH is the measurement of the voltage generated by an electrochemical cell at zero current. The potential generated is proportional to the thermodynamic activity of the ion being measured.
Similar to a pH measurement that quantifies the how acidic or alkaline solutions are, ORP (Oxidation Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. Oxidizing and reducing reagents are used to participate in chemical reactions known as a redox reaction.
An ORP meter must be chemically inert; it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors.
Features at-a-glance:
- Waterproof
- Automatic Temperature Compensation
- HOLD feature
- Simple to use
- Economical
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HI98127 pH & Temperature Tester with 0.1 pH Resolution – pHep®4
fisher brand
The pHep®4 is a waterproof ph pen for water with a 0.1 pH resolution and an accuracy of ±0.1 pH. It has many advanced features that are found in more expensive portable instrumentation. One or two-point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or 4.01, 6.86, and 9.18). The pHep®4 also features a replaceable electrode with a stainless steel round connector. This cartridge design has no pins to line up or that can break. The HI73127 replacement pH electrode also features an extractable cloth junction. The extractable cloth junction of the HI73127 allows for the renewing of the junction. Simply extract ⅛” of the junction by pulling on the junction will expose a new portion. Any clogging that was present will be cleared and the response time will be back to normal extending the life of the pH electrode.
Features at-a-glance
Waterproof ph Tester for Water
- Designed to float if accidentally dropped in a tank
Expanded pH Range
- pH range is from -2.0 to 16.0 pH
Automatic Temperature Compensation
- All readings are compensated for variations in temperature
- Temperature displayed in °C or °F along with pH reading
Stability indicator
- Meter displays a clock tag that will disappear when the reading has achieved stability
HOLD button
- Freezes reading on the display to allow recording of measurement
BEPS (Battery Error Prevention System)
- Meter will automatically shut off if there is not enough power to get an accurate measurement
Auto-off
- Meter automatically shuts off after 8 minutes of non-use to maximize battery life
View Details -
HI98128 pH/Temperature Tester with 0.01 pH Resolution – pHep®5
fisher brand
Details
The pHep®5 is a water pH tester with a 0.01 pH resolution and an accuracy of ±0.05 pH. It has many advanced features that are found in more expensive portable instrumentation. One or two-point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or 4.01, 6.86, and 9.18). The pHep®5 also features a replaceable electrode with a stainless steel round connector. This cartridge design has no pins to line up or that can break. The HI73127 replacement pH electrode also features an extractable cloth junction. The extractable cloth junction of the HI73127 allows for the renewing of the junction. Simply extract ⅛” of the junction by pulling on the junction will expose a new portion. Any clogging that was present will be cleared and the response time will be back to normal extending the life of the pH electrode.
Features at-a-glance
Waterproof
- Designed to float if accidentally dropped in a tank
Expanded pH Range
- pH range is from -2.00 to 16.00 pH
Automatic Temperature Compensation
- All readings are compensated for variations in temperature
- Temperature displayed in °C or °F along with pH reading
Stability indicator
- pH tester displays a clock tag that will disappear when the reading has achieved stability
HOLD button
- Freezes reading on the display to allow recording of measurement
BEPS (Battery Error Prevention System)
- Meter will automatically shut off if there is not enough power to get an accurate measurement
Auto-off
- Meter automatically shuts off after 8 minutes of non-use to maximize battery life
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HI98129 Low Range pH/Conductivity/TDS Tester
fisher brand
Details
View DetailsThe HI98129 is an easy-to-use and accurate waterproof pH, conductivity, TDS (ppm) tester. It measures pH, EC in the low range (0 to 3999 µS/cm), TDS (0 to 2000 ppm), and temperature. This floating, waterproof combination pocket tester has an easy to read, LCD and an automatic shut-off. All pH, EC, and TDS (ppm) readings are automatically temperature compensated (ATC) to prevent temperature-related variations in your measurements. For EC and TDS (ppm) readings, the EC/TDS conversion factor (CONV) is selectable by the user, as well as the temperature compensation coefficient β (BETA).
Replaceable pH Electrode Cartridge
The HI98129 tester features an easy to replace pH electrode cartridge with an extendable cloth junction. The extendable cloth junction helps increase electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted. Also, the sturdy, snap-in connector means there are no pins to bend or break!
High Accuracy EC and TDS (ppm) Tester Probe
The graphite conductivity probe provides greater accuracy because it cannot be contaminated by salt deposits in the solution. The exposed temperature sensor provides fast response times and guarantees highly accurate temperature compensated readings.
Features at-a-glance
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3 sensors in a single tester
pH electrode with extractable junction
Amperometric EC/TDS sensor
Exposed temperature probe for faster EC and TDS (ppm) readings
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Waterproof
Designed to float if accidently dropped in sample-
Wide pH Range
pH range is from 0.00 to 14.00 pH-
Selectable EC to TDS (ppm) conversion factor
Choice of either a 0.45 or 1.0 conversion factor- Automatic Temperature Compensation
All readings are compensated for variations in temperatureTemperature displayed in oC or oF along with pH, EC or TDS reading-
Stability indicator
Meter displays a clock tag that will disappear when the reading has achieved stability-
HOLD button
Freezes reading on the display to allow recording of measurement-
BEPS (Battery Error Prevention System)
Meter will automatically shut off if there is not enough power to get an accurate measurement- Battery % level at startup
- Low Battery Indicator
When the level is below 5%, the battery symbol on the LCD blinks to indicate a low battery condition.- Auto-off
Auto-off feature automatically shuts off meter after 8 minutes of non-use to maximize battery life -
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HI98130 Combo pH/Conductivity/TDS Tester (High Range)
fisher brand
Details
View DetailsThe HI98130 is a highly accurate, waterproof combo ph ec tester that can also measure EC/TDS in the high range (0.00 to 20.00 mS/cm EC/ 0.00 to 10.00 ppt TDS) and temperature. This floating, waterproof combination tester has an easy to read, LCD and an automatic shut-off. In addition, pH and EC/TDS readings are automatically temperature compensated (ATC) to prevent temperature-related variations in your measurements. For EC/TDS readings, the EC/TDS conversion factor (CONV) is selectable by the user, as well as the temperature compensation coefficient β (BETA).
Replaceable pH Electrode Cartridge
The HI98130 pH and conductivity tester features an easy to replace pH electrode cartridge with an extendable cloth junction. The extendable cloth junction helps increase electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted. Also, the sturdy, snap-in connector means there are no pins to bend or break!
High Accuracy EC/TDS Graphite Probe
The graphite conductivity probe provides greater accuracy because it cannot be contaminated by salt deposits in the solution. The exposed temperature sensor provides fast response times and guarantees highly accurate temperature compensated readings.
Features at-a-glance
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3 sensors in a single meter
pH electrode with extractable junction
Amperometric EC/TDS sensor
Exposed temperature probe for faster EC/TDS readings
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Waterproof
Designed to float if accidently dropped in sample-
Wide pH Range
pH range is from 0.00 to 14.00 pH-
Selectable EC to TDS conversion factor
Choice of either a 0.45 or 1.0 conversion factor- Automatic Temperature Compensation
All readings are compensated for variations in temperatureTemperature displayed in oC or oF along with pH, EC or TDS reading-
Stability indicator
Meter displays a clock tag that will disappear when the reading has achieved stability-
HOLD button
Freezes reading on the display to allow recording of measurement-
BEPS (Battery Error Prevention System
Meter will automatically shut off if there is not enough power to get an accurate measurement- Battery % level at startup
- Low Battery Indicator
When the level is below 5%, the battery symbol on the LCD blinks to indicate a low battery condition.- Auto-off
Auto-off feature automatically shuts off meter after 8 minutes of non-use to maximize battery life -
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HI98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester
fisher brand
Details
View DetailsThe HI98131 GroLine pH and tds water tester features a large multi level LCD which displays both pH, EC or TDS and temperature readings simultaneously. The pH readings are displayed with a 0.01 resolution and with an accuracy of +/-0.05 pH, while the EC and TDS readings are displayed with a 0.01 mS/cm and 10 ppm (mg/L) resolution and 2% full scale accuracy. The EC range of the HI98131 is from 0.01 to 6.00 mS/cm and TDS is from 0 to 3000 ppm using a 0.5 conversion factor. The HI98131 also offers the option to use a 0.7 (700 ppm) EC to TDS conversion factor. An exposed temperature sensor allows for rapid temperature compensated measurements of EC and TDS. The LCD screen has indicators for calibration status and stability. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available. The HI98131 is a versatile pocket meter designed for hydroponics, greenhouse and agriculture applications.
Simplified one button calibration
One or two point pH calibration is automatic to a pre-programmed buffer set (4.01, 7.01 and 10.01) or single point pH and EC calibration with the Hanna Quick Cal calibration solution. To perform a quick cal calibration, simply press and hold the left power/mode button while in measurement mode for three seconds and let go to enter calibration mode. Once both pH and EC are calibrated “CAL OK” is displayed and the meter returns to measurement mode.
HI73127 Replaceable pH electrode
The HI99131 tds water tester is supplied with the HI73127 replaceable pH electrode. This electrode features an extractable junction that can be pulled 1/8″ out to clear any clogging that results in drifting and erratic readings.
Features at-a-glance
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3 sensors in a single meter
pH electrode with extractable junction
Amperometric EC/TDS sensor
Exposed temperature probe for faster EC/TDS readings
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Waterproof
Designed to withstand the humidity of a growing environment-
Wide pH Range
pH range is from 0.00 to 14.00 pH-
Selectable EC to TDS conversion factor
Choice of either a 0.5 or 0.7 conversion factor0.5 (500 CF) conversion factor is for an EC reading of 1000 μS/cm = 500 ppm0.7 (700 CF) conversion factor is for an EC reading of 1000 μS/cm = 700 ppm- Automatic Temperature Compensation
All readings are compensated for variations in temperatureTemperature displayed in oC or oF along with pH, EC or TDS reading-
Stability indicator
Meter displays a clock tag that will disappear when the reading has achieved stability-
HOLD button
Freezes reading on the display to allow recording of measurement-
BEPS (Battery Error Prevention System
Meter will automatically shut off if there is not enough power to get an accurate measurement- Battery % level at startup
- Low Battery Indicator
When the level is below 5%, the battery symbol on the LCD blinks to indicate a low battery condition.- Auto-off
Selectable time before meter will automatically shuts off to conserve battery life. Options are after 8 minutes, 60 minutes , or disabled. -