Water Ion Meters

GAO’s water ion meters are devices that are used to measure the concentration of ions in water. These meters are used in water treatment plants, laboratories, and in the field to ensure that water is safe for consumption and meets the required standards. Our water ion meters work by using an ion-selective electrode, which is a type of sensor that detects the concentration of a particular ion in water. The electrode is placed in the water sample and measures the voltage difference between the electrode and a reference electrode, which is used to calculate the concentration of the ion.

GAO’s water ion meters are composed of ion-selective electrode, reference electrode, meter display, calibration solutions, and temperature probe.

The alternative names of ion meters include ion-selective electrodes, ion-selective sensors, ion-selective membrane electrodes, ion concentration meters, ion-specific electrodes, ion concentration analyzers, ion probes, ion detection systems, ionic strength meters, ion-sensitive field-effect transistors (ISFET), ion activity meters, potentiometric ion sensors and pH meters.

Showing 1–24 of 294 results

GAO Tek Ammonium Ion Sensor

SKU: GAOTek-HIM-242
This Ammonium ion sensor has a consists of a measuring range of 0.1 ppm to 18000 ppm, resolution of 0.001 ppm and accuracy of ± 1 %

Gao Tek Water Quality Detective

SKU: GAOTek-HIM-241
This Water quality detective has sensor input range of 0 mg per L to 100.00 mg per L, accuracy of ± 10 %  and Power 12 V DC to 24 V DC

GAOTek Cyanide Ion Meter

SKU: GAOTek-OIM-204
This Cyanide Ion Meter has a calibration solution 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000 ppm, calibration due 0 day to 31 days and accuracy ± 0.2 mV.

GAOTek Air Ion Tester Meter

SKU: GAOTek-BIM-231
This Air Ion Tester Meter has air flow rate of 2.3 m/s, an accuracy of ± 20%, 10 ions resolution, and 41 °F to 113 °F, 95% RH operation environment.

GAOTek Ammonia Ion Meter

SKU: GAOTek-LRIM-210
This Ammonia Ion Meter has a pH range of - 2.000 ph to 20.000 ph, temperature range of 41 °F to 266 °F, and 0.1 mv to 0.01 mv resolution.

GAOTek Ammonia Meter Nitrate Measurement

SKU: GAOTek-NIM-218
GAOTek Ammonia Meter Nitrate Measurement uses membrane potential to measure the activity or concentration of ions in the solution.

GAOTek Ammonium Ion Meter

SKU: GAOTek-IMWMM-204
This ammonium ion meter has an Ion accuracy of 0.5 % FS, an ion range of 5×10-6 to 1 m, 0.1 ppm to 18000 ppm and mV range of ± 1999.9 mV.

GAOTek Ammonium Ion Nitrate Meter

SKU: GAOTek-NIM-207
This Ammonium Ion Nitrate Meter has a measuring range 0.1 to 18000ppm, resolution 0.001 ppm, accuracy ±1%, and data communication of Rs485.

GAOTek Ammonium Ion Nitrate Sensor

SKU: GAOTek-HIM-204
The Ammonium Ion Nitrate Sensor has a measuring range of 0.1 ppm to 18000 ppm, a resolution of 0.001 ppm, and 32 °F to 122 °F of Temp measure range.

GAOTek Ammonium Ion Sensor

SKU: GAOTek-WQIM-414
The Ammonium Ion Sensor has a measured range of 0 mg/L to 1000 mg/L, accuracy of ± 2.5 %, resolution of 0.1 mg/L, and 4 mA to 20 mA of output signal.

GAOTek Analyzer Nitrate Ion Meter

SKU: GAOTek-NIM-204
GAOTek Analyzer Nitrate Ion Meter NO3 absorbs at 210nm ultraviolet light.

GAOTek Aquarium Water Detecting Nitrite Ion Meter

SKU: GAOTek-NIM-208
GAOTek aquarium water detecting nitrite ion meter is encapsulated in a closed electrolyte cavity. The working electrode gold electrode is directly in contact with the solution to be tested.NO2- in solution is oxidized directly on the surface of the working electrode to form a current, which is proportional to the content of NO2 in solution.

GAOTek Auto-Read Lock Featured Ion PH Meter

SKU: GAOTek-IMWA-235
GAOTek Auto-Read lock Featured Ion PH Meter offers versatile calibration options, supporting a range from 1 to 3 points calibration to ensure accurate measurements.

GAOTek Automatic Blood Electrode

SKU: GAOTek-BIM-204
This Automatic blood electrode has the principal Ion selective electrode (ISE), throughput 60 samples or hand a sample volume of 10 μL to 150 μL.

GAOTek Benchtop Ammonium Ion Meter

SKU: GAOTek-AIM-207
This Benchtop Ammonium Ion Meter has 0.1 to 18000 ppm range, 2 to 5 points of calibration, accuracy of ±0.5% F.S, and USB communication interface.

GAOTek Benchtop Auto-Hold Featured Ion Meter

SKU: GAOTek-IMWA-231
This Benchtop Ion Meter has an ion resolution of 0.001, 0.01, 0.1, 1, pH range of -2.000 pH to 20.000 pH, and mV calibration range of ±200 mV.

GAOTek Benchtop Auto-Read Lock PH Ion Meter

SKU: GAOTek-IMWA-234
This Auto-Read Lock pH Ion Meter has a pH accuracy of +0.002 pH, 0.1 mV ORP resolution, +2000.0 mV ORP mV range, and ion resolution of 0.001 to

GAOTek Benchtop Automatic Flouride Ion Meter

SKU: GAOTek-BIM-211
The Benchtop Automatic Flouride Ion Meter is suitable for laboratory applications, measure range 0.02 ppm to 1900 ppm and,calibration 2 to 5 points.

GAOTek Benchtop Calcium Ion Meter

SKU: GAOTek-CIM-213
This Benchtop Calcium Ion Meter has an accuracy of ±0.2 mV, resolutions of 0.1 mV, and working temperature range of 32 °F to 221 °F.

GAOTek Benchtop Fluoride Ion Meter

SKU: GAOTek-BIM-238
This Benchtop Fluoride Ion Meter has an ion concentration range of 0.02 ppm to 1900 ppm, mV resolution of 0.1 mV, and accuracy mV of ±0.2 mV.

GAOTek Benchtop Fluoride Ion Meter With Auto-Hold Functionality

SKU: GAOTek-IMWA-236
This Benchtop Fluoride Ion Meter has an ion concentration range of 0.02 ppm to 1900 ppm, mV resolution of 0.1 mV, and accuracy mV of ±0.2 mV.

GAOTek Benchtop Ion Concentration Meter

SKU: GAOTek-PIM-213
GAOTek Benchtop Ion Concentration Meter is a compact, multiparameter photometer for use in the lab or in the field.

GAOTek Benchtop Ion Concentration Meter

SKU: GAOTek-BIM-233
GAOTek Benchtop Ion Concentration Meter is a compact, multiparameter photometer for use in the lab or in the field.

GAOTek Benchtop Ion Concentration Meter

SKU: GAOTek-LRIM-205
This Benchtop Ion Concentration Meter has an mV Range of -2000.00 mV to 2000.00 mV, ISE Range of 1E-9 to 9.999E9, and Power output of DC 9 V.

GAO’s water ion meters have the following functions:

  • Water Quality Analysis: GAO’s water ion meters are used to determine the quality of water by measuring the concentration of various ions. They are used in laboratories and water treatment plants to monitor the quality of drinking water, wastewater, and industrial process water.
  • pH measurement: Our water ion meters measure the acidity or alkalinity of water by determining the concentration of hydrogen ions present in the water. pH levels affect the taste, odor, and quality of water, and water ion meters help to ensure that water is at an appropriate pH level.
  • Environmental Monitoring: GAO’s water ion meters can also be used to monitor the quality of water in natural environments such as lakes, rivers, and oceans. This is important for identifying pollution and ensuring the health of aquatic ecosystems.
  • Industrial Processes: GAO’s water ion meters are used in various industrial processes where water quality is important. For example, in the semiconductor industry, our water ion meters are used to monitor the purity of the water used in manufacturing processes.

GAO’s water ion meters are often rugged, versatile and precision measurement instruments. They comply with applicable industry standards such as ISO 7888:2011, ASTM, ASTM, and EPA Method 300.0.

GAO’s water ion meters help our customers to comply with relevant U.S. government regulations such as:

  • Clean Water Act (CWA)
  • Safe Drinking Water Act (SDWA)
  • Good Laboratory Practice (GLP)
  • National Primary Drinking Water Regulations (NPDWR)
  • Occupational Safety and Health Administration (OSHA)

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

  • Canadian General Standards Board (CGSB)
  • Canadian Drinking Water Quality Guidelines (CDWQG)
  • Safe Drinking Water for First Nations Act (SDWFNA)
  • Canadian Environmental Protection Act (CEPA)
  • Measurement Canada

GAO’s water ion meters have the following applications:

  • Water treatment: pH is an important parameter for water treatment, as it affects the solubility of various contaminants and the efficiency of disinfection. ORP is also used as an indicator of disinfection efficacy. GAO’s water ion meters can be used to monitor the pH and ORP levels in water treatment plants to ensure safe and clean water supply.
  • Aquaculture: Improper levels of pH and ORP can lead to fish mortality and poor growth rates. Our water ion meters can help fish farmers monitor and maintain optimal water conditions for their fish.
  • Hydroponics: pH and ORP levels also play a critical role in hydroponics, where plants are grown in a nutrient-rich water solution. GAO’s water ion meters can be used to monitor and adjust the pH and ORP levels to ensure optimal growth and nutrient uptake.
  • Swimming pools and spas: The pH and ORP levels of swimming pools and spas must be carefully monitored to ensure the safety and comfort of swimmers. Our water ion meters can be used to check the water quality and adjust the chemical balance as needed.

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