tds water testing 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 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, ... Read More

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 ... Read More

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 ... Read More

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 ... Read More

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 ... Read More

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 ... Read More

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. ... Read More

Product Points of Sale 8-in-1 Functionality Comprehensive Water Testing : Measures pH, EC, ORP, TDS, Salt, CF, Specific Gravity (S.G), and Temperature for complete analysis.WiFi Smart Monitoring : Connects to ... Read More

3 in 1 Temp TDS EC Meter Digital Water Quality Purity Tester Portable Temperature Test Pen Detector for Drinking Water Aquarium Features: 1. Multifunctional 3-in-1 water quality tester: TDS EC Temp 2. 4 modes ... Read More