handy ph meter 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 Digital PH Meters Tester With 2 Point Auto Calibration PH Tester Aquarium Pool Water Features : 100% brand new and high quality Display: LCD Digital Operating Temperature: 0~80C Specifications: Weight... Read More

Yieryi High Precision LCD electrical ph meters water PH Pen Digital PH Tester Aquarium Specifications Accuracy 0.01 Resolution 0.01 Measuring Range 0.00~14.00 Operating Temperature 0~80C Power Supply 2*1.5V ... Read More

Yieryi Pocket LCD PH Meter PH Pen PH Acidity Meter 0.0-14.0pH for Pool Water Laboratory Features Measuring range 0.00-14 .00 PH Accuracy +/- 0.01PH Resolution 0.01PH Operating temperature 0 oC~ 50 oC Battery ... Read More

Yieryi PH Meter ditigal 0-14 Pocket Pen Waterproof Acidity tester Ph pen for pool Pocket digital display acidity meter,The introduction of advanced technology and the use of imported components, greatly ... 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 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

Yieryi Digital LCD PH 03 PH Meters electrical PH tester for Urine Tester Analyze Specifications Display LCD Digital Accuracy 0.01 Resolution 0.01 Operating Temperature 0~80C Measuring Range 0.00~14.00 Standby ... Read More

Yieryi PH-03 Design Digital LCD PH Meters Soil Aquarium Safe Pool Water Wine PH Tester Features: 100% brand new and high quality Pen battery compartment stand about 2000h LCD display power PH Temperature sensor ... Read More

Yieryi pH Meter with Backlit Display for Aquarium Pocket Acidimeter Water Analysis Device Feature: pH-961 pH meter precision pen is pocket PH test pen, with excellent field applicability; After all readings are ... Read More