PH Meters

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6’ Replacement Probe for pH Constant Monitor Meter
Replacment Probe
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Bluelab pH meter with probe

Portable, easy-to-use pH meter that accurately measures pH anytime, anywhere to help you maintain optimum levels and improve plant development.

Main Features

  • Quality pH probe included
  • Calibration solutions included
  • Simple push button pH calibration
  • Auto turn off function
  • Large 13mm (1/2in) digital display for easy reading
  • Low battery indicator
  • 2 x AAA batteries
  • Light weight and portable
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Bluelab pH Replacement Electrode for Combo & pH Meter

Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double junction reference providing longer life!

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Bluelab Truncheon
The amazing Truncheon EC meter from Bluelab uses flashing lights to show the EC, CF and PPM readings. Truncheons are very accurate, reliable, and come with a five year warranty.
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Champ pH Tester
Champ is a rugged pH meter withsingle point calibration and a battery life of over 1 yeareven if used for 1 hour everyday. The new design features a larger LCD someasurments are easier to read from any angle. Champ comes with a protective cap thatcan be used to hold storage solution or as a meaurement vessel. The electrodeitself is replaceable by the user and has a non-clogging fiber junctionwhich makes it last much longer. The Champ can be used for Research, Science, Laboratory, Education, Aquariums, Hydroponics, Pools and more.
  • Accuracy (@20C/68F): 0.2 pH
  • Calibration: Manual 1 point
  • Temperature Compensation: NA
  • Battery Type / Life 400 hours
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Checker pH Tester with Replaceable Electrode

The Checker supplies you with fast and accurate readings from 0.00 to 14.00 pH with a resolution of 0.01 pH.

This compact tester features a large easy-to-read LCD and a simple to perform 2-point calibration.

The Checker is fast, accurate, lightweight and with 3000 hours of battery life, you don't have to worry about frequent battery replacement.

 

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Commercial Truncheon

The Commercial Truncheon - This is the easiest to use conductivity meter on the planet measuring up to 60 CF, 6.0 EC and 4200 PPM, guaranteed for 5 years!

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Gro'chek replacement probe for HI9813-6
Gro'chek Replacement Probe for H19813-6
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GroChek Hanna pH Indicator
  • Waterproof
  • Rugged Housing
  • Large LCD
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GroChek pH Tester
  • Shock Resistant Casing
  • Water Resistant Housing
  • Replaceable Electrode
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Hanna Gro'CHEK pHEP 4 Meter
  • Dual-Level LCD
  • Replaceable pH Electrode Catridge
  • Automatic Calibration

The pHep 4 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing.

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Hanna Gro'CHEK pHEP 5 Meter

The pHep 4 and pHep 5 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing.

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Milwaukee Double Junction pH Electrode w/ 1 meter cable
Replacement pH probe for Milwaukee sm101 & sms102
Double Junction gel-filled pH Electrode with 1m cable.

  • SMART Standard PH-EC- TDS Ph monitor,
  • Range: 0.0 to 14.0 Ph, with 2 point manual calibration and accuracy of 0.2.
  • Set point range:3.5 to 7.5 ph and led visual alarm active when reading is higher than set point.
  • supplied with 12v DC power adapter.
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Milwaukee pH Constant Monitor
This Milwaukee series of EC, TDS (PPM) and pH Constant Monitoring Meters are designed to constantly monitor your solutions. They all feature a removable 12 volt power supply, and replaceable probes with a 6 foot cable. They have a setpoint that is selected by turning a knob on the front to the desired pH or TDS level, and if your solution exceeds (on the pH meter) or is lower (on the TDS and EC meter) than your setpoint, the meter alarm light will turn on. The EC and TDS monitor have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe.
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Milwaukee pH continuous read
The SMS 110 Smart pH Monitor allows you to continuously monitor pH values directly in your aquatic environment. Features include: a user selectable set point designed for freshwater environments, visual LED alarm when values go above the set point and manual calibration. Powered by the included 12VDC adapter the meter is also supplied with a clog-resistant pH electrode.Some of the SMS 110's features include:
  • Large and easy to read LCD
  • Low Cost
  • Easy to Use
  • User Selectable Alarm set point
  • pH Electrode Included

RANGE - 0.0 to 14.0 pH
RESOLUTION - 0.1 pH
ACCURACY - 0.2 pH
CALIBRATION - Manual 2 point
SET POINT RANGE - 3.5 to 7.5 pH
ALARM - Active when reading is higher then set point
ELECTRODE - MA911B/2 (included)
POWER SUPPLY - 12VDC Adapter
DIMENSIONS - 80 x 145 x 35mm
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Milwaukee pH Continuous {0.0 to 14.0} SPO

pH MONITOR, RANGE: 0.0 to 14.0, WITH 2 POINT MANUAL CALIBRATION, AND ACCURACY OF ±0.2 pH. SET POINT RANGE: 5.5 TO 9.5 pH, AND LED VISUAL ALARM ACTIVE WHEN READING IS HIGHER THAN SET POINT. SUPPLIED WITH 12 V DC POWER ADAPTER, MA911B/2 DOUBLE JUNCTION pH ELECTRODE, 20 ml. PH 7.01 BUFFER SOLUTION AND SCREWDRIVER FOR CALIBRATION.

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Milwaukee pH hand meter SM100
This smart pH meter is a low cost portable meter with a very fast and accurate processor. Unit comes with detachable probe, 9v battery and calibration solution.
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Milwaukee pH hand meter SM101
Milwaukee pH hand meter SM101 +/-.02 special order only.
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Milwaukee pH Portable Meter
The Milwaukee series of EC, TDS (PPM) and pH Portable Meters are designed to allow you to monitor your nutrient solutions. They are all 9v battery operated for portability. The batteries last approximately 300 hours of use. They feature replaceable probes with a 3 foot cable. The EC and TDS monitors have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Calibration solutions for these monitors come in a box of 25 sachets.
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Milwaukee pH Waterproof Pen
The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. They have automatic temperature compensation for accurate readings. The pH pen will measure from 0 to 14.0 pH. The pH pen can be calibrated at 7.01 and/or 4.01. The TDS pen will measure from 0 to 2000 P.P.M. The EC pen will measure from 0.00 to 10.0 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Each pen comes complete with 3 batteries.
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Milwaukee Waterproof pH Tester
Microprocessor based waterproof pH tester with 1500 hour battery life, very accurate manual calibration and protective case with calibration solution.
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Nutra-Dip continuous pH meter
The Nutradip pH meter will continuously measure the acidity or alkalinity level of your nutrient solution, a critical factor in successful hydroponic growing. The maintenance of proper pH levels in soilless gardening is critical to plant health and yield. An imbalanced pH level in the nutrient solution can "lock out" nutrients and cause plant deficiencies when the pH is too low (more acidic). Alternately, nutrient will become trapped and over-fertilize the plant(s) when the alkalinity is too high.
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Oakton pHTestr 10 - .1 pH Accuracy ATC*
*ATC-Automatic Temperature Compensation.

Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.Auto shutoff conserves battery life.
Oakton pH Testers 10, 20, & 30feature large display screens

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution
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Oakton pHTestr 20 - .01 pH Accuracy *ATC
*ATC-Automatic Temperature Compensation

Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.Auto shutoff conserves battery life.
Oakton pH Testers 10, 20, & 30feature large display screens

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution
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Oakton pHTestr 30 - .01 pH Accuracy Temperature Display *ATC
*ATC-Automatic Temperature Compensation

Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.Auto shutoff conserves battery life.
Oakton pH Testers 10, 20, & 30feature large display screens

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution
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Oakton pHTestrs replacement sensor
replacement sensor for oakton's line of 10, 20, and 30 series pHtestrs (OK3563410, OK3563420, and OK3563430).
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Oakton Replaceable Electrodes pH WP 1 Pen
THIS IS FOR A REPLACEMENT ELECTRODE not an entire unit
Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution
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Oakton Replaceable Electrodes pH WP 2 Pen
THIS IS FOR A REPLACEMENT ELECTRODE not an entire unit
Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution
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pH Controller 115V

HIBL981411-1 pH controller has been designed for easy, affordable installation in tight spaces, ideal for simple and effective process control. The unit is provided with differential pH input and can be used with any pH electrode with standard BNC connector. Measurements are clearly displayed on the large LCD, while the status LED indicates operating mode.

HIBL981411-1 is also provided with a dosing relay. Selecting acid dosing, will cause the relay to activate when the measurement is higher than the set point. If the basic dosing is selected, the relay is activated when the reading falls below the set point.

Set point adjustment (from 0 to 14 pH) and calibration procedures are easily performed with trimmers on the front panel. You can also choose from automatic or manual dosing modes with a switch on the front panel. Manual control is particularly useful during maintenance operations, because it permits you to enable or disable the dosing relay according to your need. An overtime control system advises you when the relay is active too long, to help prevent overdosing.

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pH Electrode with 2 m (6.6') cable for HI981401N & HI981404N
pH Electrode with 2 m (6.6') cable for HI981401N & HI981404N
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pH Meter Maintenance (pH 4.01, pH 7.01, Electrode Storage Cleaner) Tri-Pack 3x8 oz
pH Buffers - These solutions are used to calibrate pH meters to assure they are accurate and working properly. You should check your pH meter frequently because the properties of the meters membrane is constantly changing from normal use and aging. We recommend a two point calibration between 4.0 and 7.0 to assure that your meter is accurate across the scale. This is why the Genesis solution is available in twin packs of 4.0 and 7.0. pH Electrode Storage Solutions - Use to store your pH meter electrode between uses. This solution is designed to keep your electrode sensing membrane and reference junction clean and unclogged and ready for use. Store you electrode directly in a small cup of solution or saturate a sponge in the cap of your meter for storage between uses. This will prevent your permeable glass membrane from becoming dry and from mineral deposits clogging the surface. This solution is designed to equalize the osmotic pressure of the reference solution in your meter junction to keep the reference solution from seeping out and prematurely aging your meter. Should your electrode membrane dry out soak it in this solution for at least two hours before use. NEVER STORE AN ELECTRODE IN DISTILLED OR DEIONIZED WATER. TDS and EC Standards - The Genesis Lab manufactures calibration standards for Total Dissolved Solids and Electrical Conductivity for the purpose of keeping your solution concentration meters reading properly. We recommend a two point calibration between 800 ppm tds (1200 uS) and 1300 ppm tds (2000 uS) to assure that your meter is accurate across the scale. This is why the Genesis solution is available in twin packs of 800 and 1300. Electrode and Probe Cleaning Solutions - Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B cleaning solution to remove both organic and inorganic deposits from meter sensors. Use monthly or as needed to refresh your meter and keep it working optimum. Soak tip in part A for 5 min, then part B for 5 min and then back in part a for 5 more minutes and rinse with tap water.
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pH/Temperature Waterproof Pen (pHep4 Meter)
Hanna Instruments offer the most advanced pens on the market today. The pHep4 pH/Temperature Waterproof Pen has a .01 ph resolution. The Dist5 EC/TDS Pen is unmatched in EC/TDS/Temperature measurement. The Combo pH/EC/ TDS/Temperature Pen offers highly advanced accuracy with a single tester. All Hanna Instruments pens offer replaceable graphite electrode, temperature in °C or °F, automatic temperature compensation with adjustable battery level indicator, stability indicator, automatic shut-off, and automatic calibration all in a floating waterproof casing. Batteries included.
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pH600 Meter
Milwaukee’s most affordable, full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH, EC or TDS values. Measuring electrical conductivity is the best way of checking the amount of salt or dissolved solids (TDS) in water. Milwaukee provides you with a range of pocket testers that will allow you to measure from very low to very high conductivity solutions. Batteries included.
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pHep
pHep(r), the standard in pH measurement with 0.1 pH accuracy, has 2point calibration, large LCD, pull out replenishable junction and 700hour battery life. The pHep(r) pH tester features a casing that is morerugged and has been ergonomically enhanced to better fit your hand. ThepHep(r) comes with a protective cap that can be used as a measurementvessel. The electrode is replaceable by the operator. With the latestinnovation of a non-clogging fiber junction the new pHep(r) meters lastmuch longer. Calibrates on 7.0 and 4.0 solutions.
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Pro pH Test Kit

This handy kit is included with our larger garden systems. A simple measurement of nutrient solution will give pH accuracy within .5. Includes a color scale, test vial and indicator solution.

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Probe pH Electrode
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Replacement 20' Patchcord for GARHCR Remote Probe
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Replacement Battery 10/card
PH
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Replacement Electrode for pH Pen
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Replacement Electrode for pH Pen
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Replacement pH Electrode for HI98127, HI98128, HI98129, & HI98130
Replacement pH Electrode for HI98127, HI98128, HI98129, & HI98130
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Replacement probe for HI9026

Replacement Probe

HI 9026 is an advanced pH/ORP meter specifically designed to provide affordable and very precise results under harsh industrial conditions. The meter features a backlit display for clear readings in the darkest environments.

When calibration is complete, the electrode condition is displayed which indicates that the electrode is working properly and when it needs to be cleaned or replaced.

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Replacement Probe, 3’ Cable
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Replacement Sensor

Replacement sensor for Oakton Waterproof Multiparameter TestrTM 35-series Pocket Meters (OK3542500 and OK3542505).

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Truncheon Contact Ring

Contact Rings are replaced on the pH Truncheon every six months to avoid contamination of the actual probe cell. They come in a sealed foil pack of three to keep them moist.

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Waterproof EcoTster pH1

Ideal for Student, Hydroponics, and Hobbyist use!
Economical, pocket sized meter is perfect for less demanding applications
Waterproof, dustproof housings float
Easy to use; push-button calibration with auto buffer recognition
Includes transparent electrode cover / sample cup
Push-button calibration, HOLD function, and error messages

OAKTON's new EcoTestr is economical and easy to use. With its crystal clear, ergonomically designed display, you can easily view measurements at a glance.
Each rugged tester has waterproof and dustproof housing for use in dirty and damp field conditions. Simply dip and read-the orientation of the display means there's no need to turn your head or tilt the tester
Single-junction electrode is well-suited for general purpose applications. Recessed bulb with bulb guard protects against breakage
One point calibration with auto-buffer recognition for quick calibrations. Hold function locks in measured value. Auto-off function preserves batteries.

Specifications
Range: 0.0 to 14.0 pH
Resolution: 0.1 pH
Accuracy: 0.1 pH
Temperature compensation: none, bring samples and standards to
room temperature
Calibration: one point
Buffer recognition: 4.0, 7.0, or 10.0
Display: three-digit vertical LCD
Power: four 1.5 V button cell batteries (included)
Battery life: >300 hours

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Waterproof EcoTster pH2

Economical price and an easy-to-read display!
Waterproof, dustproof housings float
Easy to use; push-button calibration with auto buffer recognition
Low-cost pocket sized meter is perfect for less demanding applications
Includes transparent electrode cover / sample cup
Push-button calibration, HOLD function, and error messages
OAKTON's new EcoTestr is economical and easy to use. With its crystal clear, ergonomically designed display, you can easily view measurements at a glance.
Each rugged tester has waterproof and dustproof housing for use in dirty and damp field conditions. Simply dip and read-the orientation of the display means there's no need to turn your head or tilt the tester
Single-junction electrode is well-suited for general purpose applications. Recessed bulb with bulb guard protects against breakage
Up to three point calibration with auto-buffer recognition for quick calibrations. Automatic temperature compensation for accurate readings under changing conditions. Hold function locks in measured value. Auto-off function preserves batteries.

Specifications
Range: 0.0 to 14.0 pH
Resolution: 0.1 pH
Accuracy: 0.1 pH
Temperature compensation: automatic
Calibration: up to three point
Buffer recognition: 4.0, 7.0, or 10.0
Display: three-digit vertical LCD
Power: four 1.5 V button cell batteries (included)
Battery life: >300 hours

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Waterproof PC Testr 35 (EC & pH)

Two important measurements in one instrument. The PCTestr tests conductivity and pH while the PTTestr tests EC and pH. They feature easy-to-read displays, push-button calibration, HOLD function, and error messages. Valox® housing and stainless steel electrodes offer good chemical compatibility and durability, and are designed to float,. All waterproof Testrs have replaceable sensors.

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Waterproof pH/Temperature Meter

FEATURES

  • Measures pH and Temperature
  • Auto-ranging three point calibration with digital fine tuning
  • Includes 4 pH buffer solution in a sponge embedded in a clear cap, so you can see if it's dried up
  • Waterproof housing
  • Simultaneous temperature display
  • Measurement Range: 0-14 pH
  • Digital Calibration (push button)
  • Auto-off function, data-hold function and low-battery indicator.
  • Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
  • Factory Calibrated: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.
  • Includes a cap, batteries, and lanyard

SPECIFICATIONS

  • pH Range: 0 - 14
  • Temperature Range: 0-80 C; 32-176 F
  • Resolution: 0.01 pH; Temperature resolution is 0.1 C/F
  • Accuracy: +/- 0.02 pH
  • Calibration: Digital calibration by push button.
  • Electrode: Replaceable glass sensor and reference tube electrodes
  • Housing: Waterproof (submersible; floats)
  • Power source: 3 x 1.5V button cell batteries (included)
  • Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)
  • Weight without case: 96.4 g (3.4 oz)
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Waterproof PT Testr 35 (pH & TDS)

Two important measurements in one instrument. The PCTestr tests conductivity and pH while the PTTestr tests TDS and pH. They feature easy-to-read displays, push-button calibration, HOLD function, and error messages. Valox® housing and stainless steel electrodes offer good chemical compatibility and durability, and are designed to float,. All waterproof Testrs have replaceable sensors.

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