Myron L Pocket Ultrapen Series Tester Pen for pH & Temperature - this instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications. 

Rugged and compact, the OAKTON microprocessor-based portable ACORN Series pH 6 meters offer high accuracy at an extremely affordable price! These are our most economical pH meters.

Rugged and compact, the OAKTON microprocessor-based portable ACORN Series pH 5 meters offer high accuracy at an extremely affordable price! These are our most economical pH meters.

The microprocessor-based OAKTON pH/mV/°C meter with RS-232 output includes PC software that organizes data into a file ready to import into spreadsheet software. Features include those listed above plus automatic shutoff and ready indicator.

Send data to your printer or PC! Includes free software to create data files for importing into PC spreadsheet programs!

The microprocessor-based OAKTON Economy pH 11 meter takes measurements in pH, mV or °C. Use mV output to take ORP readings. Other features include hold function, automatic shutoff, and ready indicator.

Laboratory bench top readings at an economical price!

Oakton TDSTestr® 11 Plus. Never watch a tester sink to the bottom of your tank or pond!

The Oakton TempTestr IR has hundreds of uses! Quickly troubleshoot electrical equipment before problem areas create hazards, measure objects too hot to touch, check substances that need to remain contaminant free, measure moving objects...the possibilities are endless!

Unique double junction electrode design and increased reference gel volume give you significantly longer electrode life, especially in harsh applications.

Now you can have high ±0.01 pH accuracy in a waterproof pocket-sized instrument!

Sensorex offers a comprehensive selection of laboratory pH electrodes to meet your most demanding analysis requirements.

Sensorex offers a comprehensive selection of laboratory pH electrodes to meet your most demanding analysis requirements.

Sensorex 3-in-1 combination electrodes are excellent choices for applications requiring pH, reference, and automatic temperature compensation (ATC). The 3-in-1 electrode operates like three separate electrodes, at a value price, you would pay for only one electrode.

The Sensorex CS150 and CS150TC conductivity probes are a cost effective solution for measuring conductivity in light industrial and laboratory applications.

The Sensorex CS200 and CS200TC conductivity probes are a cost effective solution for measuring conductivity in light industrial and laboratory applications.

The Sensorex HF Resistant Laboratory pH Electrodes are for use in hydrofluoric acid (HF). Please note 2 major differences as compared to standard electrodes. First, pH range is 0-12 not 0-14. Second, the temperature range is 0-50 deg C.

This series of electrodes are compatible with any lab or portable pH meter. Calibration of these electrodes is as normal with any standard pH electrode using standard pH buffer solutions.

The Sensorex ORP1000 is a durable and easy to use ORP sensor. Great for outdoor applications, such as monitoring swimming pool chlorine, this probe has built in protection for the ORP sensor surface. Use the ORP1000 with any ORP meter accepting a BNC connector.

When measuring samples such as wastewaster that may contain proteins, heavy metals, or other contaminants, it is important to use an ORP sensor (REDOX sensor) designed to withstand unpredictable chemical environments. The Sensorex ORP2000 features double junction reference protection, which prevents contamination by sample components that interact with silver (Ag). The durable Ultem® body ensures extensive chemical compatibility, making the ORP2000 a highly versatile analytical tool.

In harsh laboratory or field conditions, where heat, moisture, or corrosive chemicals may damage equipment, ORP electrode durability is key. The Sensorex ORP3000 is durable, research grade ORP electrode. All the functional components – the ORP measurement surface, the meter connection, and the cable connection – are reinforced with protective elements. Durable Ultem® body construction provides extensive chemical compatibility and withstands temperatures up to 100°C.

The Sensorex pH Detectors are designed for use with a variety of instrumental techniques such as FIA, HPLC and IEF and are also used to continuously monitor the pH of low volume flows in bench scale chemical systems. The pH detector system is specially designed to achieve ultra fast response times. A flat surface pH electrode (S450CD) located at the top of the flow cavity allows for very low internal volumes. The resulting rectangular cross-section flow path has no protruding parts which could interfere with a clean sweeping flow.

Whether you need to measure pH in your swimming pool, aquarium, or hydroponics garden, you need a probe that will deliver accurate measurements day in and day out. The Sensorex pH1000 polycarbonate pH sensor provides reliable, stable readings in a range of environments, from greenhouses to science classrooms. This sensor stands up to the usual wear and tear with its durable polycarbonate body and built-in protection for the pH glass measuring surface. Compatible with all pH meters accepting a BNC connector.

The Sensorex pH2000 (formerly S200CD) has a double junction reference design to prevent reference fouling by heavy metals and other sample contaminants. When you travel to remote sites to collect data, it is especially important that obtaining the measurements you need is hassle free. The pH2000 features an Ultem® body and a booted meter connection for durability you can trust in the field.

Agar plates, skin, and electrophoresis gels are all surfaces that may be difficult to measure with a typical glass bulb electrode due to concerns about bulb breakage. To facilitate these and other surface measurements, Sensorex created the pH2100 flat tip pH electrode. It has a rugged flat measurement surface, which breaks less easily when it comes in contact with hard materials. This makes it a great choice for measuring slurries, sludges, and viscous samples as well as those containing suspended solids.

Looking to measure the pH of soil, meat, or cheese? A standard pH sensor with bulb shaped glass won’t effectively pierce the surface of these semi-solids; the pH glass may even crack. Sensorex has created the pH2200 spear tip pH sensor, specially designed to penetrate semi-solid surfaces for effective pH measurement. The sensor is assembled with a bio-friendly Ultem® body, making it safe for use in food and soil. Use this durable pH sensor at home or in the field with any pH meter accepting a BNC connector.

Whether you are a student measuring pH in a lab or a business owner monitoring plant or crop health, you need a pH electrode that will consistently deliver accurate measurements. If you deal with a wide variety of chemicals or any aggressive substances, the Sensorex glass probe pH1400 (formerly SG201C) is a safe choice due to the chemically inert properties of glass. This basic, single junction electrode has a refillable reference cell, allowing users to maintain measurement precision throughout the sensor lifetime.

Environmental, wastewater, and other sampling applications may expose electrodes to unknown contaminants. The Sensorex pH2400 has a double junction reference design to prevent fouling by sample contaminants that interact with Silver (Ag).

Surfaces like paper, leather, electrophoresis gels and agar plates may be difficult to measure with traditional pH glass bulbs due to concerns about breakage. A flat electrode like the Sensorex pH2500, is ideally suited for these types of pH measurements as well as measurements of suspended sludges and slurries.

When accuracy and repeatability are critical, such as in pharmaceutical or drinking water applications, the ideal electrode will quickly deliver stable measurements. The Sensorex pH3000 is specially designed to respond quickly and accurately to rapid temperature changes. 

In laboratory environments such as medical, biological, and materials science research groups, samples and test conditions are constantly changing, but accuracy is always critical. The Sensorex pH3400 is a highly versatile combination pH electrode, specially designed to respond quickly and accurately to rapid temperature changes. 

The Sensorex SensoLab Series Benchtop pH/ORP Meter is the perfect solution for a range of applications from instructional chemistry laboratories to quality control testing. Our waterproof pH and ORP meter helpfully prompts you through the calibration and measurement procedures, and includes the optional AUTOLOCK feature to ensure repeatable and reliable pH and mV measurements.