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The DO-66 type pen type intelligent Dissolved Oxygen Analyzer (hereinafter referred to as the instrument) is designed to facilitate the user to carry the operation on the spot. The instrument can be divided into two parts: the sensor and electronic unit.

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Portable Salinity Meter Salinometer Halometer Salt Gauge Salty Brine SeawaterFood Salinity Tester Salt Concentration Meter, Wholesale Salinity Meter Salinometer Halometer.

Handheld TDS Meter Digital Water Tester Water Test Pen Water Quality Analysis Meter Water Purity Check 0-9999 ppm Measurement Can be use for drinking water water filters hydroponics aquariums food&coffee pools&spas. Wholesale Handheld TDS Meter Digital Water Tester.

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The meter is so powerful that it can be used to measure the moistures and temperatures of various kinds of grain rapidly and accurately in operation, applicable or allocation and transfer, requisition by purchase, storage, processing of packaged grains. Wholesale MD7822 Grain Moisture Meter.

UM34/UM34C UM24/UM24C UM25/UM25C Color LCD Display usb voltage tester current meter Voltmeter battery charge measure. Wholesale LCD Display usb voltage tester.

PH Tester is designed with 2-in-1 function, which can be measured PH and Temperature simultaneously with high precision. Omni-directional measurement of water quality to ensure the health of water quality. Apply to aquarium, hydroponics, spa, swimming pool, etc. Wholesale PH-61181 Digital PH Meter.

5pcs/lot 7in1 LCD Display Digital Current Voltage Power Energy Meter Multimeter Ammeter Voltmeter DC100V 20A, Wholesale 7in1 LCD Display Digital Current Voltage Power Energy Meter.