YIERYI 7-in-1 Digital Pool Water Tester Pen Product Overview Comprehensive 7-in-1 water quality testing instrument measuring pH, EC, TDS, Salinity, ORP, Specific Gravity, and Temperature with backlit LCD ... Leer más
5-in-1 Digital Water Quality Monitor Tester Professional multi-parameter water quality testing instrument for pools, drinking water, and aquariums. Measures TDS, EC, pH, salinity, and temperature with high ... Leer más
Yieryi EC Meter Digital Water PH Meter Filter Automatic calibration Tester for Measuring Features: Easy to carry and simple to operate. Test temperature in degrees / Fahrenheit(switchable unit). Use to measure ... Leer más
Yieryi EC Meter Digital Water PH Meter Filter Automatic calibration Tester for Measuring Features: Test temperature in degrees / Fahrenheit(switchable unit). Use to measure the pH & EC & TEMP of solution. ... Leer más
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 50°C,RH 95% ... Leer más
Yieryi TDS EC meter conductivity meter Function 3 in 1 tester water measurement tool Fetures: Saves measurements for convenient reading and recording New Arrival Auto-off function: turns off meter after 5 ... Leer más
Yieryi Function 3 in 1 TDS EC meter conductivity meter tester pen water measurement tool Please pull off the protective cover of the electrode before use; Press the key and put the electrode into the solution ... Leer más
YIERYI lcd 169E Type Pen ORP / Redox Tester waterproof potential ORP meter With box Features Measuring range 0~±1999mV Accuracy ±5mV Resolution 1 mV Display 4-digital LCD Power Supply 4×1.5V(AG13) Dimensions ... Leer más
Yieryi pen-Type ORP meter ORP2069 relectrical digital PH Meter Water Treatment Monitor Specifications: Range -1999~1999mV Resolution 1mV Accuracy ±5mV LCD Display 4 Digits Battery 4 x 1.5V (AG-13) (Not Included... Leer más