Extech
Handheld test & measurement instruments — humidity, temperature, water quality, power, and more
Extech pH and ORP
17 products
SDL100 pH/ORP Meter SD Logger
Records data on an SD card in Excel format
PH300 pH/mV/Temp Meter
The Extech PH300 pH/Temperature Kit measures pH, mV, and temperature at your workbench or in the field. It has automatic, one button calibration of 4, 7 and 10 pH with a choice of three point calibration, for better accuracy and automatic temperature compensation. Memory stores up to 200 readings with series number, measured value, and temperature. The meter has a large, blue, backlit LCD display screen with an auto power off function plus disable function that saves battery life. The IP57 waterproof housing protects it from moisture and the elements. Comes with a pH/mV/temp electrode, a protective rubber holster, the pH calibration solutions (4, 7, and 10 pH), two AA batteries, hard carrying case, and user manual.
EX900 ExStik 4 in 1 Kit (CL, pH, ORP, Temp)
The Extech EX900 ExStik 4-In-1 Kit includes a CL200 meter, pH and ORP electrodes, reagent tablets (50 tests), four plastic cups, a weighted stand, pH buffer pouches, four CR2032 batteries, 48-inch neck strap, carrying case, and user manual. The meter measures total chlorine, pH, ORP, and temperature with interchangeable flat surface electrodes that are included. Flat surface electrodes work in liquids, semi-solids and solids. Built-in memory can store/recall up to 15 readings and save the last calibrated value. It has a large 3-1/2 digit (2000 count) digital display with a bargraph and an automatic electronic self-calibration function for chlorine and ORP (1, 2, or 3 point buffer calibration for pH).
PH220-C pH Meter, Palm pH with Cabled Electrode
pH Meter, Palm pH with Cabled Electrode
PH110 ExStik pH Waterproof/Refillable
Now you can test pH on the spot easily and accurately with the ExStik PH110 Waterproof pH Meter. The durable ExStik meter features a flat surface refillable electrode for measuring pH in liquids, semi-solids, and solids – no more electrode breakage or clogged junctions. Since you can refill the ExStik quickly, you won't need to worry about the shelf life of its electrode. the ExStik meter is an invaluable tool for measuring the pH in shampoo, body wash, facial cleansers, lotions, creams, and more. Use it to monitor pools and spas, or to measure acidity and alkalinity in soil, skin, and carpeting. It's valuable in hydroponic gardening or farming. Get important readings in cement, agriculture, fish farming, wastewater, antifreeze recycling, food preparation, cleaning supplies, and manufacturing of paper, pulp, and paint. Comes complete with the refillable pH electrode, a 1.5mL bottle KCI, two reference junctions, two removal tools, a protective cap, a sample cup, four 3V CR-2032 batteries, and a 48 inch (1.2m) neck strap.
RE300 ExStik ORP Meter
ORP meter with rugged flat surface ORP electrode and high resolution of 1mV
PH100 ExStik pH Meter
The waterproof ExStik PH100 pH meter by Extech is a rugged, accurate, reusable stick pH meter with unique data storage features that make it exceptionally easy to use. The flat surface electrode allows you to measure pH in liquids, semi-solids, and solids while limiting electrode breakage and clogged junctions. The LCD readout displays pH, temperature, and an analog bar graph that shows trends in acidity or alkalinity and indicates when the reading is stable. Other features include automatic temperature compensation, auto power off, low battery indicator and data hold. The PH100 comes with a protective sensor cap, sample cup, four 3V CR2032 button batteries and a 48 in. (1.2 m) neck strap. For more convenience, purchase the EX006 weighted base, which holds both the sample cup and ExStik meter.
PH90 Waterproof pH Meter
Rugged waterproof (IP57) housing with Flat Surface Electrode for measuring pH in liquids, semi-solids, and solids. Does not break or get junctions clogged like the traditional glass bulb electrodes. Easy to replace sensor is perfect for field or lab use.
PH305 pH/ATC Electrode for PH300/EC600/DO700
The Extech PH305 is an electrode capable of measuring pH, mV and temperature. For use with the PH300 Waterproof pH/mV/Temperature Kit, EC600 Waterproof Conductivity Kit, and DO700 Portable Dissolved Oxygen Meter. Comes with a 6 month warranty.
PH701 Replacement pH Probe with Protective Cap for EC700
Replacement pH probe with protective cap for Extech EC700, 6-in-1 water quality meter. Measure pH between 2.00 and 12.00. Color coded for easy identification and installation. Lasts more than 6 months with typical usage and regular maintenance.
RE305 ExStik ORP Electrode
The Extech RE305 ORP ExStik Electrode Module is an easy to clean, rugged, flat surface ORP electrode that is interchangeable with ExStik chlorine or pH meters. It measures in liquids, semi solids and solids. The RE305 comes complete with the protective connector cap.
PH115 Refillable pH Electrode with Tool Kit
Replacement flat surface electrode for ExStik
PH105 ExStik pH Electrode
The Extech PH105 pH ExStik Electrode Module is an easy to clean, rugged flat surface pH electrode. It is interchangeable with the ExStik Chlorine or ORP meters and measures in liquids, semi solids and solids. Also, it has the ATC via the built-in PT-100 Ohm sensor. The Extech PH105 pH ExStik Electrode Module comes complete with the protective connector cap.
PH103 pH Buffer Solutions, 20Pk Includes pH 4,7,10, Rinse
Extech PH103 are convenient, pre-measured pH calibration solutions for your meter. Included is a rinsing solution used for cleaning off the pH electrode before and after taking measurements to prevent contamination (6 pouches of pH4 solution, 6 pouches of pH7 solution, 6 pouches of pH10 solution, 2 pouches of rinse solution).
PH10-P Buffer Solution/ pH 10 2 One Pint Bottles
Buffer Solution/ pH 10 2 One Pint Bottles
PH4-P Buffer Solution/ PH4 2 One Pint Bottles
Buffer Solution/ PH4 2 One Pint Bottles
PH7-P Buffer Solution/PH7, Two One Pint Bottles
Buffer Solution/PH7, Two One Pint Bottles
Need Help With Extech Products?
Our team is factory-trained and ready to help you select, configure, and maintain Extech instruments.
Get Expert Help