Testers & Detectors (171)

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    Digital PH Meter Tester Pocket Aquarium Pool Water Wine LCD Pen Monitor
    USD $8.99
    GM816 Anemometer Wind Meter with Thermometer
    USD $18.99
    USD $11.99
    Professional Digital Anemometer Split Type Air Flow Meter ELECALL EM8901
    USD $49.99
    PEAKMETER MS6252A Multifunction Digital Anemometer/Air Volume/Temperatur/Humidity
    USD $25.99
    400 Litmus Paper Test Strips Alkaline Acid pH Indicator
    USD $9.99
    USD $3.99
    Digital Noise Meter dB Sound Level Meter ELECALL EM901
    USD $23.43
    USD $14.99
    Digital Laser Photo Tachometer Non Contact RPM Tach Meter Motor Speed Gauge USA
    USD $14.99
    TDS Water Quality / Mineral Pen Tool Measuring Instrument
    USD $7.99
    DearRoad Professional High Sensitivity Hand Held Metal Detector Guard Security Treasure
    USD $27.54
    USD $18.99
    HYELEC MS6252B digital anemometer Professional air speed velocity air flow meter with air temperature air humidity RH USB port
    USD $56.99
    Marine Plastic Compass with Stand and Boat Caravan Truck 12V LED Light ZW-550--Black/White
    USD $20.99
    USD $12.99
    Digital Handheld High Precision Split Type Anemometer Air Meter Wind Meter HoldPeak HP-836A
    USD $46.99