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% ... Lire la suite
YIERYI Pen-Type ORP/TEMP Meter Water Quality Analyser Thermometer Redox tester Features: Use to measure the amount of Oxidation Reduction Potential (ORP) level and temperature (°C/ °F). Double functions, ... Lire la suite
Yieryi 3 in 1 TDS EC meter conductivity meter TDS PH tester Water Quality Purity Tester Fetures: Locking function: easy to read and record, the instrument will lock the readings; 5 minutes automatic shutdown ... Lire la suite
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 ... Lire la suite
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 ... Lire la suite
Yieryi ORP-2069 LCD Digital Type Red Pen PH Tester Water Quantity Pool Tester ORP Meter roduct Description: This handy ORP tester measure the amount of Oxidation Reduction Potential (mV) from - 1999~1999mV. It ... Lire la suite
YIERYI 169E ORP/Redox Tester waterproof ORP meter,ORP tester for pool water quality tester Features: Technical Specification: Measuring range:0~±1999mV Accuracy: ±5mV Resolution:1 mV Display:4-digital LCD Power ... Lire la suite
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. ... Lire la suite
7-in-1 Water Quality Monitor Tester Professional multiparameter water quality tester for pH, TDS, EC, ORP, salinity, specific gravity, and temperature measurements Product Specifications Accuracy 0.01 pH ... Lire la suite