swimming pool digital orp meter online manufacture

YIERYI Digital ORP Tester electrical 0-1999mg/LmV ORP Meter ORP-986 Water Hydroponics Specifications: Range 0~1999mg/LmV Resolution 1mV Accuracy 5 mV Batteries 4 x 1.5V alkaline Environment 0 to 50C,RH 95% max ... Read More

YIERYI ORP/TEMP Meter Thermometer Redox ORP tester aquarium Water Quality Analysis Steps: 1. Remove the protective cover. 2. Touch the "ON / OFF" switch to turn on the power. 3. The electrode into the measured ... Read More

YIERYI Digital Pen-type tester ORP-969 Pen-Type ORP Meter VOxidation Reduction Analyzer Features: Use to measure the amount of Oxidation Reduction Potential (ORP) level. The tendency of the solution to either ... Read More

7 in 1 Temp ORP EC TDS Salinity S.G PH Meter Online Blue Tooth Water Quality Tester APP Control for Drinking Laboratory Aquarium Feature: pH Meter with Bluetooth Powered by the YINMIK mobile App, professional ... Read More

Manufacturer price waterproof ATC pH/H2 / ORP /Temperature 4 in1 Meter Feature: [4-in-1 water quality test] YIERYI PH meter is designed with 4-in-1 function, which can be measured PH, ORP, H2, and Temperature ... Read More

Waterproof Digital Handheld Ph Meter Automatic Water Analyzer Control Range 0.0~14.0ph +/-500mv Professional Water Analyzer Control Range 0.0~14.0pH +/-500mV Pen Type Waterproof Digital pH & ORP Meter Automatic ... Read More

YIERYI LED Pen-Type Digital ORP Meter ORP-969 electronic redox Tester Water Quality Analysis Specifications Range -1999mV ~ 1999mV Resolution 1mV Accuracy 5mV Operating Temperature 0degrees ~ 50degrees (32F ~ ... Read More