Water pH Meters

GAO’s water pH meters are devices that measure the acidity or basicity of water. pH is a measure of the concentration of hydrogen ions in a solution and ranges from 0 (most acidic) to 14 (most basic). A pH meter consists of a probe that is inserted into the water sample, and a meter that displays the pH reading. The probe of a pH meter contains a glass electrode that is sensitive to the concentration of hydrogen ions in the water. The electrode generates a voltage that is proportional to the pH of the water, which is then read by the meter and displayed as a numerical value.

GAO’s water pH meters are composed of probe, reference electrode, pH meter display, calibration solution, temperature sensor, and battery.

The other common names of pH meters are pH testers, pH probes, pH sensors, acid-base meters, hydrogen ion concentration meters, alkalinity meters, acidic solution meters, alkaline solution testers, pH indicators, pH analyzers, pH measurement devices, acidity/alkalinity monitors, pH measurement instruments, pH monitors and pH gauges. 

GAO Tek has been focused on servicing the North American markets and has earned praise from many of its customers in the U.S., Canada, and Mexico.

Showing 1–24 of 124 results

GAOTek Digital PH Sensor

SKU: AOTek-PHM-288
This Digital pH sensor has a pH range 0 pH to 14 pH, processing pressure range of 15 PSI to 246 PSI and temperature compensation range of 32 °F to 275 °F.

GAOTek Portable Ph Meter

SKU: GAOTek-PHM-287
GAOTek ph meter with backlight display and operation keyboard, comprehensive functions, simple operation, simple interface.

GAOTek Handheld PH Meters

SKU: GAOTek-PHM-286
GAOTek PH meter, also been called as Digital PH meter or PH Tester, is the device that do PH measurement for liquid.

GAOTek Pen Portable PH Meter

SKU: GAOTek-PHM-285
This Pen Portable pH Meter has a pH range -0.000 pH to 14.000 pH, temperature range of 32 °F to 140 °F and automatic calibration.

GAOTek Ph Water Meter

SKU: GAOTek-PHM-284
GAOTek Ph water meter steel ruler water level gauge provides the most accurate way to measure water levels, used to measure the water level in wells, boreholes, and water pipes, particularly suitable for the observation of groundwater level in hydropower projects and artificial inspection of dam body infiltration line.

GAOTek Handheld Water Multimeter PH

SKU: GAOTek-PHM-283
GAOTek handheld multimeter pH measures six key water treatment parameters simultaneously: pH, conductivity, PTSA, Free Chlorine, ORP, and Temperature.

GAOTek Portable Multi-meter Ph Meter

SKU: GAOTek-PHM-282
GAOTek Ph Power Meter is a single-phase handheld electronic meter test unit in accuracy class 0.1 or 0.2, used for testing single phase electricity meters error on site.

GAOTek Ph Power Meter

SKU: GAOTek-PHM-281
GAOTek Ph Power Meter is a single-phase handheld electronic meter test unit in accuracy class 0.1 or 0.2, used for testing single phase electricity meters error on site.

GAOTek PH Detector

SKU: GAOTek-PHM-200
This PH detector has temperature range of 14 °F to 275 °F, pH range of -2 pH to 16 pH, and 220 VAC power supply.

GAOTek Portable Digital PH Meter

SKU: GAOTek-PHM-199
This Portable digital pH meter has temperature range of 32 °F to 221 °F, pH range of -2.00 pH to 20.00 pH and 1.5 V AA batteries.

GAOTek Portable PH Meter

SKU: GAOTek-PHM-198
GAOTek Portable PH meter is a specialized water quality detector for aquaculture, with multiple detection items to help you better understand the aquaculture environment.

GAOTek Portable Ph Meter

SKU: GAOTek-PHM-197
GAOTek Portable Ph Meter has a small size and reliability quality to work on most conditions.

GAOTek Ph Electrode Tester

SKU: GAOTek-PHM-196
GAOTek ph electrode tester is mainly used to measure the redox potential of fresh or moist soil, water (medium) redox potential, pH, temperature, and other data in situ.

GAOTek Portable PH Meter

SKU: GAOTek-PHM-195
This portable PH meter has temperature range of 23 °F to 266 °F, TDS range of 0.000 ppm to 1000 ppm and 24V power supply.

GAOTek Ph Meter

SKU: GAOTek-PHM-194
GAOTek Ph meter is more economical and environmentally friendly than traditional chemical method. Small, easy to install, and can be used for continuous online water quality monitoring.

GAOTek Portable pH Multi-Meter

SKU: GAOTek-PHM-193
GAOTek Portable pH multi-Meter a robust and intuitive range of portable meters, instilling confidence in reporting and managing your results.

GAOTek Water Quality Instrument Portable Ph Meter

SKU: GAOTek-PHM-192
GAOTek Water Quality Instrument Portable Ph meter comes with a range of standard sensors including pH, dissolved oxygen, conductivity, temperature, turbidity, depth, ORP, Chlorophyll, Blue-green Algae, NH4+, K+, TSS, Salinity etc.

GAOTek Portable Bench Top pH Meter

SKU: GAOTek-PHM-191
This portable bench top pH meter has temperature range of 32 °F to 140 °F, pH measure range of 0 pH to 14 pH, and 12V power supply.

GAOTek Turbidity Measurement Ph Meter

This Turbidity Measurement Ph Meter has a temperature range of 32 °F to 140 °F, a measurement range of 0 mg/L to 10000 mg/L, and a power supply of 12 V.

GAOTek Agricultural ph Meter

This Agricultural Ph Meter has a temperature range of 41 °F to 113 °F, a pH range of 3.0 pH to 14.0 pH, and a rechargeable battery.

GAOTek Handheld Digital pH Meter

This Handheld Digital pH meter has a temperature range of 14 °F to 104 °F, a frequency range of 40 Hz and a 9.6 V rechargeable battery.

GAOTek Dissolved Oxygen ph Meter

GAOTek The handheld device can be used for monitoring of dissolved oxygen, temperature, and PH in water, and can meet the requirements of portable accurate water quality measurement.

GAOTek Automatic Calibration pH Meter

This Automatic Calibration pH Meter has a temperature range of 23 ºF to 230 ºF, a pH range of -2.00 pH to 20.00 pH and an AC adapter.

GAOTek Portable PH Tester Meter

SKU: GAOTek-PHM-175
GAOTek Portable PH Tester Meter is one of the intelligent online chemical analysis instruments, which can continuously monitor data and realize remote monitoring and recording through transmission and output connection recorder.

GAO Tek’s water pH meters have the following functions:

  • Measure pH: The primary function of GAO water pH meters is to measure the pH of water. pH is a measure of the concentration of hydrogen ions in water, which determines whether the water is acidic or alkaline. Our pH meters use a specialized electrode to measure the pH of water, which is typically displayed on a digital screen or readout.
  • Determine water quality: pH is an important indicator of water quality, as it can affect the solubility and toxicity of various chemicals and metals in water. By measuring the pH of water with GAO water pH meters, we can help determine whether water is suitable for various uses, such as drinking, irrigation, or industrial processes.
  • Monitor water treatment: Our water pH meters are used to monitor the pH of water during water treatment processes, such as chlorination, coagulation, and sedimentation. By monitoring the pH of water, operators can ensure that the treatment process is effective and that the water is safe for its intended use.
  • Maintain equipment: pH can affect the performance and lifespan of various equipment and machinery that use water. By monitoring the pH of water with our water pH meters, operators can prevent corrosion, scaling, and other issues that can damage equipment and decrease efficiency.

GAO’s water pH meters are rugged, portable, versatile and precision measurement instruments. They comply with applicable industry standards such as ISO 9001, ASTM E70, good laboratory practice/good manufacturing practice (GLP/GMP), food and drug administration (FDA) regulations, and CE certification.

Our water pH meters help our clients in complying with relevant U.S. government regulations such as:

  • Clean Water Act
  • Safe Drinking Water Act
  • Occupational Safety and Health Administration (OSHA) regulations
  • Environmental Protection Agency (EPA) regulations
  • Food and Drug Administration (FDA) regulations

Our water pH meters help our clients in complying with relevant Canadian government regulations such as:

  • Canadian Environmental Protection Act
  • Canadian Drinking Water Guidelines
  • Canadian Environmental Quality Guidelines
  • Occupational Health and Safety Regulations

GAO’s water pH meters have the following applications:

  • Water treatment: GAO pH meters are used to monitor the pH levels in water treatment plants to ensure that the water is safe for consumption.
  • Aquaculture: Our pH meters are used to monitor the pH levels in fish tanks, ponds, and other aquatic systems to ensure that the water conditions are suitable for fish and other aquatic organisms.
  • Agriculture: Our pH meters are used to measure the pH levels of soil and irrigation water in agriculture to optimize crop growth.
  • Environmental monitoring: GAO pH meters are used to monitor the pH levels of natural bodies of water, such as lakes, rivers, and oceans, to detect and prevent water pollution.2
  • Scientific research: Our pH meters are used in scientific research to measure the pH of various solutions in chemistry, biochemistry, and other scientific fields.
  • Food and beverage industry: Our pH meters are used to monitor the pH levels in food and beverage production processes to ensure product quality and safety.

Our water pH meters can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.