Field pH Meters
Complementing this lineup, chlorine meters, especially digital chlorine meters, offer a specialized function for testing chlorine levels in water, ensuring safety and compliance with health standards. The key benefits of using these instruments include their portability, ease of use, and the ability to obtain immediate, accurate readings in various environments. Digital models provide clear, easy-to-read displays, making data collection more efficient and reliable.
Together, these tools support a wide array of scientific and environmental studies, contributing significantly to water quality monitoring and research efforts.
Thomas carries a large selection of benchtop and portable pH meters for all your pH testing needs. Find the pH Meter or pH Tester best suited to your application.
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CON 2700 Benchtop Meter
OaktonMeasure conductivity, total dissolved solids (TDS), salinity, resistivity, and temperature Brilliant backlit display with dynamic stability indication Up to 500 point memory with date-time stamp for GLP Output data to printer or PC Accepts either 2-cell or 4-cell electrodes Features…
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Waterproof pH Testers
OaktonFeatures three-point push button calibration High accuracy ATC Self-diagnostic messaging Non-volatile memory Double-junction polymer sensor Waterproof pHTestr 30 is great for outdoor applications such as taking pH measurements in lakes and streams. Designed to float in…
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PH100 Benchtop pH Meters
labForce® (powered by Thomas Scientific)The labForce® PH100 Benchtop pH Meter provides accurate measurement, quick response time, and consistent result thanks to the advanced digital filtering technology. It has three measuring modes for your specific measuring needs: stable measurement display mode, timing measuring mode, and…
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Lab Star PH111 pH/mV Bench Meter
Thermo ScientificLSTAR1110 The Thermo Scientific™ Orion™ Lab Star PH111 pH/mV Bench Meter is ideally suited for laboratories with users of varying levels of technical expertise and who require a simple-to-calibrate and use meter for routine pH testing. Scientists have trusted Thermo Scientific…
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3520 Bench pH Meters
Jenway (Cole-Parmer)Thomas Nos. 1200R17 and 1200R18 Ideal for quality control and GLP applications Up to 3 decimal place resolution 1, 2 or 3 point pH calibration Automatic or manual buffer selection Multiple language options Storage of up to 500 results RS232 connection to printer or PC or…
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Datalogging Meter pH Kit
Sper ScientificAutomatically log up to 4,000 readings or manually record 99 readings, each with pH, mV (supports ORP), °C or °F, time and date Review all data on the meter’s display or download with the included software Three point calibration with automatic buffer recognition indicating the number…
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Star™ A221 pH Portable Meters
Thermo Scientific OrionGet the readings that you need where you need them with the Thermo Scientific Orion Star A221 pH Portable Meter. The large, backlit graphic LCD display shows pH/mV/RmV and temperature along with electrode status, time, date and calibration points. Anyone can use this meter with its plain…
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Convenient Portable pH Meter for Wherever Your Work Takes You After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of a portable pH meter. This portable meter offers convenience, reliability and…
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*** Accessories Available - Meter has been discontinued *** Basic, inexpensive meter produces reliable results Waterproof (IP67) Measures/compensates temperature in °C or °F European CE Mark Anti-glare coating Powered by long-lasting batteries (est 500…
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Eutech™ Elite pH Spear Pocket Testers
Thermo Scientific OrionpH/Temperature The Eutech™ Elite pH Spear pocket tester features a spear tip open pore sensor. This rugged and user-friendly tester is ideal for direct measurement of solid or semi-solid samples such as cheese, meat, fruit, bread and more. Used in applications such as hydroponics, food…
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FiveEasy™ pH/mV Meters
Mettler ToledoThe well-priced pH/mV and conductivity FiveEasy and FiveEasy Plus benchtop meters are the perfect choice for a wide range of laboratory applications. Time is an ever more valuable asset. Thanks to the Five's intuitive operation, sleek design and simple data export functions, you can…
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Waterproof Palm pH™ Meter
ExtechLarge LCD displays pH or mV and Temperature simultaneously Microprocessor provides for Automatic Buffer recognition Memory stores 25 readings Automatic Temperature Compensation Unit is completely waterproof when electrode is connected to the meter Low Battery indicator and Auto Power…
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Large Display ORP Pen
Sper ScientificFor ORP (Oxygen Reduction Potential) measurement in water treatment, disinfection and labs. Highly stable and accurate readings with a large LCD display. Designed for simple one-hand operation. Features auto power off, hold function, and a low battery indicator. The case is IP65 waterproof, and…
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Oakton pH 100 Portable pH meter
Cole-ParmerConvenient, compact design with large display Measured parameter and temperature shown on display at same time Utilizes same electrodes as Oakton 6+ series Stability, calibration, and low-battery indicators Waterproof and dust-resistant IP57 rating – great for use under harsh…
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The 9-in-1 DO700 Kit measures DO concentration/saturation, pH, mV, Temperature, Conductivity, TDS, Salinity, and Resistivity. It features automatic salinity compensation and manual barometric pressure compensation for DO measurements. In addition, it has automatic one button calibration of 4, 7 and…
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Replacement Cuvettes & Accessories
Milwaukee InstrumentsThe Milwaukee MI0001 are replacement glass cuvettes for Milwaukee photometers. Set of two per box. The Milwaukee MI0011 are replacement glass cuvettes for Milwaukee turbidity photometer MI415. The Milwaukee MI0002 are plastic replacement caps for the MI0001 cuvettes for Milwaukee photometers. The…
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For pHtestr 30 purchased before Oct. 2019 Replace electrodes when they break, no longer hold calibration, cannot be rehydrated, or are not compatible with your sample. For your convenience, cables, power adapters, and other accessories are available for your Oakton meters and pocket testers. …
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Eutech™ Elite pH Pocket Testers
Thermo Scientific OrionThe Thermo Scientific™ Eutech™ Elite pH pocket tester features a simultaneous display of pH and temperature. One of the most common scientific measurements in the world today is pH, which measure the alkalinity and acidity of a liquid. Common industries that measure pH range from…
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Lab Star DO113 Dissolved Oxygen Bench Meter
Thermo ScientificThe Thermo Scientific™ Orion™ Lab Star DO113 Dissolved Oxygen Bench Meter is ideally suited for laboratories with users of varying levels of technical expertise and who require a simple-to-calibrate and use meter for routine dissolved oxygen testing. Scientists have trusted Thermo…
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FermProbe? pH Probe,12x420mm Broadley-James
Bellco GlassThe fermprobe pH electrode with s8 metric cap features a standard s8 detachable cable connector on a metric pg 135 threaded polymer cap the design requires the rotation of the electrode during installation this style of pH fermprobe is the first choice for small autoclavable bench-top vessels all…
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HI 9829 Series Probes & Accessories
Hanna InstrumentsThomas No. 1197F28: pH Sensor, with o-ring, to be used with HI 9829 and HI 98290 series multiparameter meters Thomas No. 1197F29: pH/ORP sensor, with o-ring, to be used with HI 9829 and HI 98290 series multiparameter meters Thomas No. 1197F30: Ammonium ISE sensor, with o-ring, to be…
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pH/CON 700 Benchtop Meter
OaktonEasily toggle between pH, mV, conductivity, TDS, and temperature measurements at the touch of a button Space-saving design takes up less room on the bench than other meters Large display lets you see your measurements from across the lab Conductivity and TDS autoranging chooses the best…
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SevenDirect SD23 pH/Cond Meter
Mettler ToledoThe pH/conductivity Meter SevenDirect SD23 provides accurate pH and conductivity measurements for almost any sample across a wide range of applications. The EasyPlace electrode arm and protective cover are included with the instrument. The benchtop meter's ease of use, data handling…
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The YSI pH/temperature field probe and cable is compatible for use with EcoSense pH100A, pH100 meter models. It is made of sturdy material which ensures durability and long lasting usage.
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Extremely versatile—the meter automatically recognizes which sensors you plug in so you can easily switch parameters whenever you want Select a meter with the number of channels you need (1, 2, or 3) and the sensors for the parameters you are measuring (pH, conductivity, or DO) Eliminate…
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Waterproof pH/DO 450 Meter
OaktonAffordable optical RDO technology eliminates maintenance time and costs Durable waterproof and dustproof design with IP67 rating Eliminates costly, tiresome membranes and solutions Barometric pressure and salinity correction USB and RS-232 output for up to 500 data sets …
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pH Pens
Sper ScientificHighly stable and accurate readings with large LCD display Designed for simple one-hand operation Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognize non-standard buffers as well Features hold function and auto power
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Salinity Pen Meters
OhausAfter more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in a line of pen meters that provide accurate measurement of pH, oxidation-reduction potential (ORP), conductivity, s
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All three parameters, plus temperature, measured and displayed simultaneously! These top-of the-line waterproof meters offer features that are typically found on much more expensive models. The IP67-rated housing allows use in dirty and wet environments without harm to the meter. Datalog up…
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Portable pH/pH-mV/ORP and Temperature Meter
Hanna InstrumentspH Sensor Check™; Allows users to check electrode status at any time Multi-level LCD display; Display the current measurement simultaneously with the current temperature On-screen tutorial messages Automatic Temperature Compensation Automatic one or two point calibration HI…
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pH/ORP Waterproof Combination Tester
Milwaukee InstrumentsCombination waterproof testers with advanced functions also include the new model pH58 for simultaneous pH and ORP measurements and temperature, which is continuously displayed on the dual level LCD. It shows readings in an extended range from -2.00 to 16.00 pH or ±1000 mV and…