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  1. 4 in 1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality Tester Kit

    2, ORP negative potential ±1999MV. H2 hydrogen rich 0-10000PPb. H2 hydrogen rich 0-1000PPb. PH value 0-14. Lightweight and portable. Built-in high-sensitivity electrode head, high-sensitivity glass electrode, rust-proof platinum electrode.

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  2. TDS EC PPM Water Digital Tester Purity Hydroponics Quality Test Kit For Drinking

    Press shift to switch between different modes. Backlit version, displaying green when TDS value is less than 50 and red when TDS value is greater than 50. TDS:0-9999ppm. This is a TDS&EC testing pen.

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  3. Digital TDS 3 Water Quality Tester Purity Meter TEMP PPM Test Filter Pen Stick

    This unit is not water-tight and is not covered under the warranty if water enters the unit. This item can be used in: water purifiers and filters, food (vegetable, fruits) & drink quality monitoring, pools and spas, aquariums, hydroponics.

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  4. Digital Drinking Water Quality Tester TDS EC PPM Meter Electric Reader for Pool

    Press shift to switch between different modes. 3.5 minutes automatic shutdown. Save power and extend battery life. Size: 15.5cm 3cm 1.5cm. Accuracy: ± 2%. Temperature range: 0.1-80.0℃(32.0-176.0℉).

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  5. Digital Tester TDS Pen Meter Water Purity Quality Testing Kit For Drinking Water

    Save power and extend battery life. Press shift to switch between different modes. Each startup mode is the default mode used before shutdown. The four modes are: TDS temperature, EC temperature, TDS Fahrenheit, EC Fahrenheit, and the temperature display in the lower right corner (temperature varies with water temperature).

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  6. 4in1 Drinking Water Tester Digital TDS PPM Meter Water Quality Purity Test Tool

    Shift between TDS and Conductivity. Can be used in : Water purifiers and filters, food(vegetable, fruit)&drink quality monitoring, pools and spas, aquarium, hydroponic. Accuracy: ±2%. Press the switch ,place the electrode into the testsolution.

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  7. PH Chlorine Water Quality Test Kit Swimming Pool Tester Water Testing Box

    PH Chlorine Water Quality Test Kit Swimming Pool. The ideal range of residual chlorine in the pool water is 1.0-1.5 ppm; the ideal range for the pH of the pool water is 7.2-7.6. When testing pH, if the residual chlorine content is higher than 3.0 ppm, you may get a wrong pH test result.

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  8. 8 in 1 Water Quality Tester Meter Pen PH/ORP/EC/TEMP/SALT/S.G/TDS/H2 Backlight

    Help the salt chlorinator work more efficiently in the appropriate salinity value. Teeth Polisher Dental Tartar Oral Electric Remover Plaque Stains Cleaning Tool. Hand Massager with Airbag Compression Finger Wrist Palm Massage Hot Compression.

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