Using a water quality meter, the highest priority is always accuracy. Whether you’re measuring calcium or magnesium ion in water, the accuracy has to be on-point.

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GAOTek Conductivity Electrode Tester

SKU: GAOTek-CET-103
GAOTek Conductivity Electrode Tester is for water quality professionals who want to perform electrochemical analysis for field and lab environments.
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GAOTek PH Meter with 5 Points Calibration (High Accuracy)

SKU: GTOOY400ZE
This PH Meter with 5 Points Calibration (High Accuracy) is designed in the accuracy of 0.002 pH and supports relative and absolute millivolts measurement modes.
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GAOTek Copper Al Conductivity Tester

SKU: GAOTek-CT-196
GAOTek Copper Al Conductivity Tester is the first generation of Digital Conductivity Meter designed with eddy phase.
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GAOTek Digital Tester Conductivity Meter

SKU: GAOTek-CT-195
This conductivity tester has a pH range of 0.00 pH to 14.00 pH, pH accuracy of ± 0.05 pH and resolution of 0.01 pH.
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GAOTek Multi Parameter Tester

SKU: GAOTek-CT-194
GAOTek Multi Parameter Tester is used to measure ocean dynamic parameters of seawater including temperature, conductivity and pressure.
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GAOTek Conductivity Tester

SKU: GAOTek-CT-193
This conductivity tester has Cond range of 0.00 μS/cm to 100 mS/cm, TDS range of 0 g/L to 100 g/L and temperature range of 23 °F to 230 °F.
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GAOTek Touch Screen Digital Conductivity Meter

SKU: GAOTek-CT-192
This Digital conductivity meter has temperature range of 14 °F to 246°, accuracy of ±1.0 % FS and electrode constant of 3.94 in (100 mm).
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GAOTek Automatic Conductivity Tester

SKU: GAOTek-CT-191
This automatic conductivity tester has a pH range of 0.00 pH to 14.00 pH, accuracy of ± 0.01 pH and resolution of 0.01 ph.
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GAOTek Current Copper Conductivity Meter

SKU: GAOTek-CT-190
GAOTek crack depth gauge tester is based on the principle of acoustic diffraction to measure the crack depth of concrete surface.
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GAOTek Negative Oxygen Ion Detector

SKU: GAOTek-BIM-291
GAOTek negative oxygen ion detector is equipped with a color touch screen to display the concentration of negative oxygen ions in the air in real time.
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GAOTek Ion Meter

SKU: GAOTek-OET-290
This ion meter has temperature range of 32 °F to 212 °F, pH range -2.000 pH to 20.000 pH, and 5 V power adapter.
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GAOTek Ion Counter Tester

SKU: GAOTek-OET-289
GAOTek ion counter tester is equipped with a color touch screen to display the concentration of negative oxygen ions in the air in real time.
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GAOTek Ion Meter

SKU: GAOTek-OET-288
This ion meter has a temperature range of 32 °F to 212 °F, accuracy of ±0.2 mV, and output USB communication interface.
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GAOTek Ion Meter

SKU: GAOTek-OET-287
This ion meter has Temperature range of 14 °F to 230 °F, Resolution of 1 mV, and Examination Range 10-1 mol/L to 10-6 mol/L.
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GAOTek Ion Concentration Meter

SKU: GAOTek-OET-286
GAOTek Ion Concentration Meter is used in Water supply plant (sedimentation tank), paper mill (pulp concentration), coal washing plant (sedimentation tank), electric power (slurry sedimentation tank), sewage treatment plant (inlet and outlet, aeration tank, reflux sludge, primary sedimentation tank, secondary sedimentation tank, concentration tank, sludge dewatering).
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GAOTek Ion Concentration Meter

SKU: GAOTek-OET-285
This ion concentration meter has a measuring range of 0.00 pNa to 9.00 pNa, accuracy electric unit ±0.02 pNa, and LED display with pNa value.
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GAOTek Ion Meter

SKU: GAOTek-OET-284
This ion meter has a temperature range of 32 °F to 212 °F, pH range of 0.00 pH to 14.00 pH and 115 V/ 230 V AC power adapter.
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GAOTek Ion Meter

SKU: GAOTek-OET-283
This ion meter has a temperature range of 32 °F to 212 °F, measuring range of 0.00 pH to 14.00 pH and LCD display.
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GAOTek Ion Tester

SKU: GAOTek-OET-282
GAOTek Ion meter is the latest new micro-computer based high-end instrument.
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GAOTek Ion Tester

SKU: GAOTek-OET-281
GAOTek ion tester is an important factor inducing rebar corrosion.
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GAOTek Multi-Parameter Water Quality Meter (pX and pH, Conductivity)

SKU: GT00YY00ZP
This Multi-Parameter Water Quality Meter (pX and pH, Conductivity) is designed with 200 sets of data storage and the pX/pH measure the potential (mV), pH, pX and ion concentration.
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GAOTek Portable Current Conductivity Tester

SKU: GAOTek-CT-300
GAOTek portable current conductivity tester is a kind of eddy current electrical conductivity meter, which is designed for quick & and convenient measurement of material properties, such as material separation, quality control, material state check, and so on.
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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.
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GAOTek Portable Ph Meter

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

SKU: GAOTek-CT-142
This Handheld PH Conductivity Tester has a temperature range of 32 °F to 122 °F, power supply of 12 v, and protection grade of IP68.
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GAOTek Salinity Conductivity Meter

SKU: GAOTek-CT-180
This Salinity Conductivity Meter has temperature range of 23 °F to 248 °F, salinity range of 0 ppt to 300 ppt and 1.5 V AA battery.
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GAOTek Salinity Conductivity Tester

SKU: GAOTeK-CT-187
This Salinity Conductivity Tester has temperature range of 14 oF to 230 oF, electrode constant of 0.1 cm-1/1 cm-1/10 cm-1, and 7 in touch screen.
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GAOTek Digital pH Conductivity Tester

SKU: GAOTek-CT-178
GAOTek Digital pH Conductivity Tester is designed with an eddy detection method.
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GAOTek PH Conductivity Tester

SKU: GAOTeK-CT-186
This Ph Conductivity Tester has a resolution of 0.01 pH, optical stability less than 0.002 A and weight of 7.71 lb
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GAOTek Battery Conductivity Tester

SKU: GAOTeK-CT-184
This Battery Conductivity has a measuring range of 0 mm Ω to 9990 mm Ω, voltage of 0 V to 25 V operates on a resistance of 1 mm Ω, and weights 2.42 lb
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