ph pen tester online manufacture

Yieryi digital Water PH Meter /Tester 0.0-14.0 PH pen For swimming Pool water test Features: The electrode has been used(laid) for long time from the last calibration The electrode has been used in particularly ... Read More

Yieryi Protable LCD Digital PH Meter Pen electrical PH Tester Aquarium Pool Water Wine Urine Features: 100% brand new and high quality Calibration Method: 2 points automatic calibration Probe Type: Precision ... Read More

Yieryi Professional 3 in 1 Multi-parameter PH Tester Pen Type pH EC TEMP for Drink Water Specifications: Range: pH: 0.00 ~ 14.00p EC: 0.00 ~ 19990us/cm Temperature: -50 degrees~ 70 degrees (-58 Fahrenheit~ ... Read More

Yieryi Protable LCD Digital PH Meter Pen electrical PH Tester Aquarium Pool Water Wine Urine Specifications: Accuracy: 0.01 Resolution: 0.01 Measuring Range: 0.00~14.00 Operating Temperature: 0~80C Power Supply... Read More

High Precision pH-007 Pen-Type pH Meter pH / TEMP tester Water Quality Analysis Acidity meter Features: Great to measure the pH level & temperature of solution/water. Imported control chip & full waterproof ... Read More

Protable LCD Digital PH Meter Pen of Tester Aquarium Pool Water ph-2 blue Feature: 1.Easy to Use: Simply immerse the pH meter electrode in the solution to be tested, readings are quickly display on a large lcd ... Read More

PH-98108 pH Meter pH Tester Sharp glass Electrode for Water Milk Food Cheese Specifications: Model:PH-98108 Measuring range: 0.00~14.00pH Accuracy :0.2PH 0.1PH Resolution: 0.01PH Operating Temperature : 0C~50C ... Read More

Yieryi PH Meter With Backlight Temperature Compensation ATC Water Quality Acidity Tester Features: Backlgiht display High accuracy up to 0.1 pH Compact and portable pen-type design Built with Automatic ... Read More

Yieryi TDS Meter Water Quality PH Tester for Aquarium Water alloy probe Stick Monitoring Yieryi digital LCD TDS Meter Water Quality PH TDS Tester for Aquarium Pool Water quality TDS-1 Water Quality Meter TDS1- ... Read More

Yieryi PH Meter Automatic Correction Waterproof Acidity meter Pen Type Quality Analysis Device feature: For measuring the solution PH value and temperature. Waterproof grade IP65, can replace the sensor probe. ... Read More