pH Indicators

Sensors, Monitors & Transducers, Test & Measuring Instruments

Online Process Meters measure pH, ORP, or conductivity.

July 11, 2016

Providing reliable data and control of process fluids, TX10 pH/ORP and CX10 Conductivity transmitters offer simple monitoring, while TX20 pH/ORP and CX20 Conductivity controllers can also be programmed. TX10 measures pH or ORP and temperature, and CX10 measures conductivity, resistivity, and temperature. TX20 and CX20 models additionally include temperature compensation. Powered by 100–240 Vac, all 4 models have pushbutton interface, clear LCD, and 1/8 DIN enclosure. Read More

Mechanical Components & Assemblies, Test & Measuring Instruments

Digital Dialysate Meter features syringe-style design.

May 9, 2016

Used for measurement of conductivity, temperature, and pH, handheld pHoenix XL offers calibration guide and one-touch calibration buttons that foster reading accuracy confidence. Syringe-style design allows sample gathering directly from sample port on dialysis machine and eliminates need for pH paper test strips. Alog with auto-ranging capability, features include ability to provide 3 instant readings in one step; ambidextrous, splash-resistant, and rugged design; and 3.6 V Li-ion battery. Read More

Test & Measuring Instruments

Digital Handheld Meters/Testers measure EC, TDS, temp, and pH.

November 2, 2015

Available in professional and economy versions, HM digital handheld meters and testers increase efficiency of mineral nutrient water tests. These waterproof products are capable of measuring Electrical Conductivity (EC), Total Dissolved Solids (TDS), and temperature or Potential of Hydrogen (pH) and temperature. Read More

Test & Measuring Instruments

Water Quality Meter uses Android app.

April 27, 2015

With SAM-1 App, SAM-1™ Smart Aqua Meter transforms Android smartphones or tablets into pH, ORP, or Conductivity/TDS meters with integral temperature measurement. Unit plugs into headphone jack of device and connects to Sensorex smart analytical sensors. Instantly recognizing smart sensor, app provides interface for measurements and managing data. Readings can be tagged with GPS location and user comments. Stored data can be transmitted via email and opened in Excel for analysis and reporting. Read More

Test & Measuring Instruments

Water Tester simplifies chlorine demand measurement.

March 16, 2015

Measuring amount of chlorine consumed by ammonia, iron, manganese, and other organic materials, CD-2000 provides advanced information such as Chlorine Demand in raw water. Corresponding amount of chlorine is added to achieve clean water with consistent level of residual chlorine. Suited for daily control and research purposes, instrument can measure chlorine demand in diverse water types and provide measurement without interference from turbidity or color of water. Read More

Electronic Components & Devices, Test & Measuring Instruments

Concrete pH Kit facilitates on-the-spot measurements.

August 5, 2014

With its flat surface electrode design, EXSTIK Concrete pH Kit accelerates and facilitates on-the-spot pH measurements on concrete. Components include 1M extension cable with weighted probe guard; flat surface concrete pH electrode; protective sensor cap; plastic bottle; batteries; plastic stand; sample cup with cap; neck strap, and carrying case. While able to simultaneously display pH and temperature with ATC, kit can also store 25 sequentially tagged readings for detecting changes.
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Test & Measuring Instruments

Waterproof Palm pH Meter has ruggedized, handheld design.

July 30, 2014

Available with choice of stick or cabled pH electrode, Waterproof Palm pH Meter is designed for accelerated response measurement. Microprocessor offers automatic buffer recognition, and memory stores 25 readings. Along with simultaneous display of pH or mV and temperature on LCD, features include automatic temperature compensation, ruggedized design with handheld form factor, and wall mounting option. When electrode is connected to meter, unit is also waterproof. Read More

Test & Measuring Instruments

pH Meter utilizes digital electrodes.

January 7, 2014

Weighing less than 9 oz and measuring ½ in., Hanna Edge Meter uses digital electrodes to measure pH, conductivity, and dissolved oxygen. CAL-CHECK® and Sensor Check functions warn user if electrodes are not clean, pH bulb is cracked, or junction of electrode is compromised. Instrument includes two USB ports, 5.5 in. LCD, capacitive touch buttons, benchtop cradle, and electrode holder. Read More

Test & Measuring Instruments

Model 612 Portable Digital pH Stick Meter

August 20, 2012

The Model 612 portable digital pH stick meter with replaceable pH electrode, features dual point calibration and has manual temperature compensation, 9V battery. Features · All solid state design · Low power consumption · 0.31 High LCD display readable under bright ambient conditions Read More

Test & Measuring Instruments

pH Meter Accessory operates with iPhone® or iPod®.

June 26, 2012

With Model PH-1 Meter Application Accessory, users can measure pH and email critical readings. After plugging accessory into iPhone or iPod and downloading application, users connect module to sensor and application provides real-time display of pH, mV, ambient temperature, and solution temperature. Accessory eliminates mistakes when recording readings and works with location-aware devices to log coordinates where readings were taken for analysis and auditing. Read More

Test & Measuring Instruments

Pocket pH Meters utilize non-glass silicon chip sensor.

January 26, 2012

Providing stable readings in seconds, miniLab Pocket pH Meters use ISFET sensor technology that contains several proprietary layers deposited selectively on silicon substrate. Quantity of hydrogen ions at or near sensor surface causes electrical effect that is detected and measured as pH. Featuring IP67-rated waterproof design, meters excel in environmental studies and academic teaching labs as well as food/beverage, medical, pharmaceutical, agricultural, and petrochemical applications. Read More

Test & Measuring Instruments

All-in-One pH/ORP Tester provides ±0.02 pH unit accuracy.

September 21, 2011

Waterproof to IP67 specifications, pH/ORP TesTrode can be calibrated with 1, 2, or 3 pH buffers that are automatically recognized. Users can see pH or ORP simultaneously with °F or °C temperature, as well as date, time, and other measurement details. Featuring backlit design, display can be read at night or in low-light conditions. Capable of storing 25 measurements, tester enables recall of data for critical record-keeping requirements. Read More

Test & Measuring Instruments

Benchtop Meters feature compact design with oversized display.

July 28, 2011

Measuring 6 x 7 in. with oversized 3¼ x 2 7/16 in. LCD, 2700 Series switches from pH to mV ion readings with press of button. Built-in memory function stores up to 100 pH, mV, relative mV, or concentration readings with corresponding temperature. Designed with water-resistant membrane keypad and password protection, meters include auto-buffer recognition for USA and NIST pH buffer sets, automatic or manual temperature compensation, and display hold. Read More

Controls & Controllers, Test & Measuring Instruments, Thermal & Heating Equipment

Cole-Parmer Exhibits at PITTCON® Conference & Expo 2011 in Atlanta, Georgia

February 18, 2011

View the latest technologies at booth #835 in the Georgia World Congress Center<4444>Vernon Hills, Ill., -Cole-Parmer, an exhibitor at the PITTCON Conference on March 13-March 18, will showcase a selection of both new products and returning favorites.<4444>Get the first look at the new Masterflex® L/S® Precision Variable-Speed Console Drive with an easy-to-read digital display in an economical... Read More

Test & Measuring Instruments

Water Quality Testers have portable, handheld design.

January 20, 2011

Oakton pH 6+ Meters feature up to 5-point, pushbutton calibration with autobuffer recognition and display of pH or mV and temperature, while Ion 6+ Meters offer direct readout of ion concentration with preprogrammed calibration points. CON 6+, TDS 6+, and SALT 6+ Meters supply autoranging conductivity or TDS with temperature measurements, and DO 6+ Meters have galvanic probe that does not require any warm-up time. All meters include rubber boot with built-in stand. Read More

Test & Measuring Instruments

Benchtop Meters suit research applications.

September 22, 2010

Equipped with oversized backlit display and dynamic stability indicator, Oakton® 2700 series includes models for measurement of ion concentration, conductivity/TDS, pH/conductivity/TDS, and dissolved oxygen. All calibration and stored data is stamped with time and date, meeting GLP requirements, and nonvolatile memory stores and recalls up to 500 sets of data. In addition to limit alarm, users can program data logging intervals for continuous monitoring. Read More

Test & Measuring Instruments

pH and pH/ISE Meters offer electrode diagnostic capabilities.

May 5, 2010

Featuring LogR technology, Orion Star LogR Meters use resistance across bulb to provide method for electrode analysis and to determine sample temperature. Meters also allow for temperature-compensated pH readings without use of separate temperature input. Units provide data storage for up to 1,000 points with time and date stamp, up to 5 point calibration for pH and Ion Selective Electrode, and RS232 port for data downloads and meter software updates. Read More

Test & Measuring Instruments

ISFET pH Meters use non-glass probes.

February 23, 2009

Designed to measure pH, mV, and temperature, handheld Model 24300 is waterproof and armored in chemical-resistant holster, while Model 24301 is waterproof and Good Laboratory Practices compliant. Handheld or used for unattended monitoring, Model 24301 also features Bluetooth data transfer capabilities and internal memory that will store up to 999 data points. Both Ion-Sensitive Field Effect Transistor Meters are suited for food testing and life sciences applications. Read More

Test & Measuring Instruments

Benchtop pH Meter is usable in field or in lab.

January 29, 2009

PHB21 benchtop meters feature automatic resolution selection, automatic electrode check, and maximum/minimum audible alarm. CE compliant product handles 99 point data logging and has NEMA 4 rated enclosure. Displayed readings can be continuous, held, or logged to memory. Package includes glass electrode, calibration buffers, 9 Vdc battery, operator's manual, and carrying case. Read More

Sensors, Monitors & Transducers, Test & Measuring Instruments

Multiparameter Testers fit in a pocket.

March 24, 2008

Suited for water, wastewater, laboratory, and plant use, OAKTON waterproof multiparameter Testr(TM) 35-Series meters measure pH, conductivity, TDS, salinity, and temperature. Units have long-life pH electrodes and stainless steel conductivity sensors for wide range of sample compatibility. Adjustable temperature coefficient feature helps measure conductivity or TDS accurately at varying temperatures, while Auto-ranging feature handles applications across broad measurement ranges. Read More