TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range, Hand Held Digital Water Test Pen for Farming, Aquariums, Pools, Household Drinking Water (Blue) hidden 4 simple buttons make operation

4 simple buttons make operation more intuitive

The stabilizing support ensures an ideal posture that effectively prevents back pain

This product contains fish

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TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range, Hand Held Digital Water Test Pen for Farming, Aquariums, Pools, Household Drinking Water (Blue) hidden 4 simple buttons make operationTDS Meter, Electronic Water Tester with 0 9990 PPM Measurement Range, Hand Held Digital Water Test Pen for Farming, Aquariums, Pools, Household Drinking Water (Blue) Product Features FAST AND ACCURATE READINGS Just turn it on, dip in about 1 inch deep of water and read display, Large digital display makes it easy to read. AUTOMATIC CALIBRATION No need any adjustment screwdrivers, just finish the calibration with Auto calibration with 1 3 seconds,