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✔ GET ACCURATE READING This 7/1 digital pH meter is a powerful tool that allows you to measure the pH level of your Pool / Hot Tub / Aquarium / And
Digital PH Meter 7 in 1: PH-TDS-EC-ORP-SG-Salt-Temp/PH Tester/No More Test Strips/High Accuracy Water Tester/Water Testing Kits for Swimming Pool
【7 in 1 Salinity Tester】Digital salinity tester with 7 in 1 function,just press the MODE/CAL key,you can switch to measure
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7 in 1 Temp ORP EC TDS Salinity S.G PH Meter Online Blue Tooth Water Quality Tester APP Control for Drinking Laboratory Aquarium