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  1. ESU 53900 Decoder Tester

  2. 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

  3. 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

  4. 3-in1 Drinking Water Tester Digital TDS PPM Meter Water Quality Purity Test Tool

    1 × Water Tester Pen. Conductivity Range: 0-9990 μS/cm. Accuracy: ±2%. Temperature Range 3 x Touch Screen Stylus Pens for iPhone iPad Tablet Samsung Android Phone. Earphones Wired Headphones In Ear High Definition Deep Bass 3.5mm AUX Jack.

    eBay

  5. PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water Purity PPM Aquarium Filter

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

    Aliexpress UK

  6. 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

  7. PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water Purity PPM Aquarium Filter

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

    Aliexpress UK

  8. BLUELAB TRUNCHEON EC/CF/PPM NUTRIENT METER TESTER

    Bluelab nutrient meter measures amount of nutrients in water and nutes. Perfect for feeding your plants the correct amount.. Used and has always done a magnificent job

    eBay

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

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

    Aliexpress UK

  10. 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. ③ Gently stir the pen in the test solution until the reading stabilizes. The reading will be fixed on the display screen within 2 seconds.

    eBay

  11. 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

  12. 3IN1 TDS PPM Meter Digital Tester Home Drinking Water Quality Purity Test Tester

    There are 4 modes are: TDS temperature, EC temperature, TDS Fahrenheit, EC Fahrenheit, the lower right corner is the temperature display. Press shift to switch between different modes. TDS test range: 0~9999PPM.

    eBay

  13. PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water Purity PPM Aquarium Filter

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

    Aliexpress UK

  14. 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

  15. 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

  16. Digital PH & TDS EC Meter Combo Hydroponics Water Quality Tester Drinking Water

    【4 in 1 pH Meter】A very complete kit for checking the quality of your water, whether it's from a faucet, hot tub, homebrew, indoor soil growing, aquarium, hydroponics or swimming pool. In addition, TDS tester and PH tester as pens are small in size, light in weight, and easy to carry when going out!【High Accuracy】PH meters range from 0.00-14.00 (PH), while digital EC and TDS meters range from 0 to 9999 ppm. PH resolution is 0.01pH, accuracy ± 0.01pH. TDS: 0 - 9999ppm, conductivity: 0 - 9999us/cm, accuracy: ± 2%, LCD blue backlight display for reliable and fast readings.【Easy Calibration】PH tester automatically calibrates at three points). You don't need any tools; just remove the protective cap and dip the pH meter electrode.

    eBay

  17. PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water Purity PPM Aquarium Filter

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

    Aliexpress UK

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