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  1. 7 in 1 LCD Backlight Water Quality Tester Meter for PH/ORP/EC/TEMP/SALT/S.G/TDS

    ORP negative potential ±1999MV. Salinity 0-20%. The specific gravity of S.G seawater is 1.000-1.222. 2, TDS value 0-200000ppm. H2 hydrogen rich 0-2400PPb. EC value 0-200000㎲/cm. 1x 7 In 1 Tester Pen. PH value 0-14.

    eBay

  2. Digital TDS Meter Water Tester PPM Water Quality Pen Measuring Range 0-9999 PPM Ideal for Aquariums Hydroponics Drinking

    Digital TDS Meter Water Tester PPM Water Quality Pen Measuring Range 0-9999 PPM Ideal for Aquariums Hydroponics Drinking

    Aliexpress UK

  3. Digital PH Meter Pen Water Quality Tester 0.01 Accuracy for Aquarium & Drinki

    Wide Range of Applications: Ideal for testing water in aquariums, hydroponics, pools, drinking water, and more.

    eBay

  4. 0.0-14.0 TDS/EC Meter PH Digital Water Tester PH 0-9990ppm TDS&EC LCD Water Purity PPM Filter Conductivity/Temperature Test Pen

    0.0-14.0 TDS/EC Meter PH Digital Water Tester PH 0-9990ppm TDS&EC LCD Water Purity PPM Filter Conductivity/Temperature Test Pen

    Aliexpress UK

  5. 4in1 TDS PPM Meter Digital Tester Home Drinking Water Quality Purity Test Tester

    It is a must-have item for family to test tap water, distilled water, bottled water and more. Multifunctional, practical and convenient. TDS range: 0-9990PPM. Conductivity range: 0-9990us/cm. Temperature range: 0.1-80℃.

    eBay

  6. SM1 Single/TRM1 Triple TDS Meter Online TDS Water Quality Tester 0-9990PPM LCD Display Water Quality Purity Tester PH Meter

    SM1 Single/TRM1 Triple TDS Meter Online TDS Water Quality Tester 0-9990PPM LCD Display Water Quality Purity Tester PH Meter

    Aliexpress UK

  7. TDS Meter Digital Water Quality Tester Testing Kits Drinking Water 0-9990ppm Lot

    Press shift to switch between different modes. 3.5 minutes automatic shutdown. Save power and extend battery life. Accuracy: ± 2%. Temperature range: 0.1-80.0℃(32.0-176.0℉). Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.

    eBay

  8. Portable Pen Digital TDS Meter Temperature Tester Water meter Filter Measuing Water Quality Purity Tester Water Meter

    Portable Pen Digital TDS Meter Temperature Tester Water meter Filter Measuing Water Quality Purity Tester Water Meter

    Aliexpress UK

  9. TDS EC PPM Water Tester Meter Pen – Digital Purity Quality Test for Hydroponics

    eBay

  10. 1PC White Handheld LED Digital Water Tester TDS EC Meter Range Household Water Purity Temperature Meter TEMP PPM Tester

    1PC White Handheld LED Digital Water Tester TDS EC Meter Range Household Water Purity Temperature Meter TEMP PPM Tester

    Aliexpress UK

  11. Digital Tester TDS PPM Meter Water Purity Hydroponics Water Quality Test Pen UK

    RANGE : 0-9990 ppm. Used to test the purity of the water quality of the filter. ACCURACY : +/- 2%.

    eBay

  12. TDS Meter Digital Water Tester Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter with Batteries

    TDS Meter Digital Water Tester Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter with Batteries

    Aliexpress UK

  13. VIVOSUN PH Meter Digital PH Tester Pen 0.01 High Accuracy Water Quality Tester

    eBay

  14. TDS Meter Digital Water Tester High Accuracy Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter

    TDS Meter Digital Water Tester High Accuracy Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter

    Aliexpress UK

  15. 4in1 Drinking Water Tester Digital TDS PPM Meter Water Quality Purity Test Tool

    It is a must-have item for family to test tap water, distilled water, bottled water and more. Multifunctional, practical and convenient. TDS range: 0-9990PPM. Conductivity range: 0-9990us/cm. Temperature range: 0.1-80℃.

    eBay

  16. 5-in-1 Water Tester Pool Salt Tester High Accuracy PH/EC/TDS/Salt/Temp Meter Water Analyzer for Pools Aquariums

    5-in-1 Water Tester Pool Salt Tester High Accuracy PH/EC/TDS/Salt/Temp Meter Water Analyzer for Pools Aquariums

    Aliexpress UK

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