pocket ph meter online manufacture

Yieryi Digital ph meter TDS/EC/PH/Salinity/Tem Meter Digital Water Quality Monitor for Pools, Drinking Water, Aquariums EZ-9909 is a new multi-functional water quality test instrument, which can measure pH, TDS... Read More

YIERYI PH Meter Digital 0 to 14.00 pH Waterproof Ph Tester Aquarium Laboratory Water Checker Backlight Pen CT-6021A Tool Features: 1. The electrode can be replaced. 2. Low power consumption, high accuracy, wide ... Read More

Yieryi Pocket Pen Water PH Meter LCD Tester 0.0-14.0 PH For Aquarium Pool Water Laboratory Features: The electrode has been used(laid) for long time from the last calibration The electrode has been used in ... 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 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 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 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 ... 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 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