Top 9 ORP Meter for Testing Water – Lab pH Meters

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1. DANOPLUS

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Waterproof Digital Pen Type Multiparameter Water Quality Tester Kit 6-in-1 pH ORP TDS Salinity Conductivity EC Temperature Meter with Replaceable ORP Probe for Testing Aquarium and Drinking Water

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DANOPLUS #ad - Multifunctional - it has wide range of application, laboratory use, swimming pool and spa, hydroponics, plant water industry, anti-freeze recycling, aquaculture, from chemical industry, water treatment to household use for testing aquarium and drinking water quality.

This multifunctional tester has an upgraded PEN TYPE design for a simple dip-and-read use. Accurate and real time - with large lcd display, TDS, temperature results are shown simultaneously with pH, conductivity, or salinity. Temperature is selectable, it displays maximum/minimum value with data hold function and parameters are automatically identified during electrode replacement.

Superb features - with automatic temperature compensation ATC and one button digital calibration, this is an accurate and highly reliable tool for testing water quality. 6 parameters in 1 device - professional ph, orp, temperature, conductivity, TDS and salinity tester in one pen. Powered by microprocessors, stabilized readings are perfect for testing the quality of drinking water to ensure that it’s healthy and safe to drink.
BrandDANOPLUS #ad
ManufacturerDANOPLUS #ad
Part NumberKIB-019_ORP

2. TEKCOPLUS

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6 in 1 Multi-Parameter pH/ORP Redox/EC/CF/TDS PPM/Temp. ATC Professional Combo Testing Meter Rechargeable Unit w/Removable BNC Electrode for Aquarium Hydroponics Lab Spas Pools Water

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TEKCOPLUS #ad - Power supply:  dc  6v included Adaptor, Input Voltage: 100~240V. Wide applications : aquarium, laboratory, spas, hydroponics, swimming pools and other water systems With Automatic temperature compensation. Detachable electrodes : comes with removable BNC electrodes, replacing the electrode instead of the whole unit helps to save the cost in long-term. 6 -in 1 functional parameters : ph/ orp/ ec/ cf/ tDS PPM/ Temperature with high accuracy and Auto Temperature compensation ATC. Easy calibration : long time on-line monitoring, Clear LCD with backlight, Selectable °C/°F.
BrandTEKCOPLUS #ad
ManufacturerTekcoplus Ltd #ad
Weight0.51 Pounds
Part NumberPHTK-243
ModelPHTK-243

3. Fdit

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4 in 1 Portable Digital PH Tester Pen, Fdit Professional Water Quality Tester Water Quality Testing Meter Salinity PH TDS EC ORP Tester

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Fdit #ad - Adopts the digital screen display with backlight, which is more clear and convenient to read data. It features high performance, pen shape, fast numerical stability and accurate calculation result. Ip67 waterproof, this meter can still be used when dropping into the fish tank, convenient to use. Suitable for domestic water, fish tank, farmland, swimming pool, aquaculture, laboratory, aquarium, food salinity, etc. It is a multifunctional water quality tester, which can test salinity PH TDS EC and ORP of the water.
BrandFdit #ad
ManufacturerFdit #ad
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Part NumberFditex368ksva1

4. Gain Express

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6-in-1 Waterproof pH/ORP/TDS/EC Conductivity/Salinity/Temp Meter Pocket Size Multi-Parameter Water Quality Tester Kit Replaceable ORP Probe

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Gain Express #ad - 6 parameter in one meter: ph / temperature °c, °f / orp / conductivity / tds total Dissolved Solids and Salinity. Multi parameter pentype water quality tester with large, easy to read and clear LCD.

Features: with automatic temperature Compensation, Compact housing IP57 waterproof and it floats on water. Measurement ranges:  ph -2~16ph; temperature 0~90°c 32~194°f; conductivity 0~2000μs / 2. 00~2000ms;  tds 0~1300ppm / 1. 30~13. 00ppt; orp -1000~1000mv; salinity 0~1000ppm / 1. 00~12. 00ppt. Application: an ideal tool for all water quality testing like agriculture, chemical Industry, Boiler, cooling tower, Anti-freeze Recycling, Food industry, Garden husbandry, Swimming pool & Spa, Aquarium, Water Treatment, Hydroponic, Fish Farming, Plating industry, Drinking Water, Laboratory usage, etc.

Design: smart pen type combo water quality tester. Does not require a power supply to operate, so it can be used anytime and anywhere.
BrandGain Express #ad
ManufacturerGain Express Holdings Ltd. #ad
Height8 Inches
Length9 Inches
Weight1.52 Pounds
Width3 Inches
Part NumberM0199720-ORP
ModelM0199720-ORP

5. AUNMAS

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Accurate Oxidation Reduction Potential Tester Analyzer for Aquarium Swimming Pool, Portable Mini Pen Type ORP Meter for Water Quality Measurement, AUNMAS ORP Tester

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AUNMAS #ad - Accurcyequipped with high-precision sensor, it is sensitive in response and accurate in measurement results, and widely used in industry and laboratory.

Materialmade of high quality ABS material, it is durable, wear-resistant, corrosion-resistant and can be used for a long time. Backligntwith lcd backlight display, the measurement results can be directly displayed on the screen, convenient for observation. Technologythis product is mainly used to measure the level of ORP and observe the trend of obtaining or losing electrons. Using rangesmall size, easy to carry, suitable for aquarium, hot spring, hydroponics, compact structure, swimming pool and other water systems.
BrandAUNMAS #ad
ManufacturerAUNMAS #ad
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Weight0.22 Pounds
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Part NumberComborth407kea8i1

6. Gain Express

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Research Laboratory ORP-228 Meter+Calibration Powder, ORP Redox Meter -1999~1999mV Oxidation Reduction Potential Tester with 256mV ORP Calibration Buffer for Water Testing, Aquarium

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Gain Express #ad - Find out quickly the sort of water you drink and how your filter works efficiently and effectively. Best for laboratory and industrial households drinking water test, in aquariums, wastewater, water treatment systems, aquaculture, spa, pools, artificial ponds, etc. Carry-everywhere design. Determine the water quality indicators with this ORP meter in just a few minutes. Scale of measurement: -1999 ~ 1999 mV in 1 mV steps. Inexpensive and practical device with 1 point calibration, easy to use and highly accurate.
BrandGain Express #ad
ManufacturerGain Express Holdings Ltd #ad
Part NumberORP-228_POW
ModelORP-228_POW

7. RCYAGO

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PH/ORP/H2/TEMP Meter, RCYAGO 4-in-1 Digital pH Meter with ATC, 0-14.0 pH Measurement Range, ±0.005 pH Accuracy

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RCYAGO #ad - Ph meter with automatic temperature compensation: temperature will affect the reading level, there is only a range of 0°c-50°C. Ph tester with wide application: ideal for household and laboratory pH testing applications, pond, including drinking water, aquariums, swimming pool, hydroponics, laboratory, etc.

Compared with other ph meters for water, it can solve the possible errors caused by the perfect change of liquid temperature, so as to make the pH reading more accurate. Our digital ph meter has a better range of 0°C-60°C 32°F-140°F. Automatic power-off function & backlit display: the automatic power-off function turns off the power after 5 minutes without any operation to save power. All-round measurement of water quality to ensure healthy water quality. Therefore, and automatic temperature compensation can ensure that you get the best reading.

The ph meter features a green backlit LCD to help you obtain the measurement results clearly in any situation. 4-in-1 water quality test: with rcyago 4-in-1 ph tester, ORP, H2, which can measure PH, and Temp value with high precision at the same time. And the ph meter uses the three-point calibration method to calibrate the electrode to the solution of pH 4. 00, ph 6. 86, and pH 9. 18 to ensure the accuracy of measurement.
BrandRCYAGO #ad
ManufacturerRCYAGO #ad
Part NumberORP Meter
ModelYY-400

8. RCYAGO

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RCYAGO 4 in 1 PH/ORP/H2/TEMP Meter Digital Water Quality Tester and Hydrogen Generator Water Bottle

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RCYAGO #ad - Hydrogen water tester: 4-in-1 water quality test is a newly developed high-precision multifunctional water quality tester, hydrogen ion concentration, which has the function of measuring PH, ORP, and water temperature. In the three-minute micro-electrolysis hydrogen production process, the higher the mineral content in the water, and the higher the hydrogen content.

5 generation molecular hydrogen generator produces the best antioxidant for you; molecular hydrogen is a novel antioxidant to efficiently reduce oxidative stress and improvement of mitochondrial diseases. Rich hydrogen cup brings you a healthy life: anti-stress, improve water quality, beauty, etc. Safe and convenient: hydrogen-rich water cup usb charging port adopts DC round charging interface, TUV certification, safe, reliable, PES, and convenient, hidden waterproof design, simple, passed 3C, equipped with a charger and charging line, can be charged at any time.

High efficiency: rich hydrogen cup it only takes 3 minutes to quickly electrolyze, the stronger the electrolysis effect, change the water quality, and accompany you often. At home, at work, anti-fatigue, improve sleep, improve memory, enhance immunity, in sports. And ph meter uses a 3-point calibration method, calibrating the electrode to solutions of pH 4. 00, rcyago ph meter’s full measurement range of 0-14pH, pH 6. 86, and pH 9.
BrandRCYAGO #ad
ManufacturerRCYAGO #ad
Part NumberPH Meter

9. RCYAGO

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Aquarium, ORP Tester for Household Drinking, Hydroponics, RCYAGO ORP Meter Redox Tester Portable Digital Water Quality Tester Pen, Measurement Range -1999mV ~ 1999mV

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RCYAGO #ad - Accurate and reliable: in order to achieve high accuracy, a high-quality probe is equipped to ensure that accurate readings are always maintained at various temperatures.

Transparent lcd with backlight, small size, convenient and simple reading. Suitable for the water source, swimming pool, spa, aquarium, hydroponics, and other water systems. Orp tester is the ideal tool for professional testing of water levels. Used for measuring the amount of redox potential ORP level, The tendency of the solution to either gain or lose electrons. Compact and portable pen design, easy to carry. Easy to use, and it can provide an instant display of results.
BrandRCYAGO #ad
ManufacturerRCYAGO #ad
Part NumberORP-969
ModelORP-969