yieryi online manufacture

YIERYI Range:0~1999mg/LmV Digital Handheld ORP Tester ORP Meter ORP-B Water Hydroponics Oxidation and reduction potential, referred to as ORP or Eh. ORP as a comprehensive indicator of the environmental ... Read More

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 LED Pen-Type Digital ORP Meter ORP-969 electronic redox Tester Water Quality Analysis Specifications Range -1999mV ~ 1999mV Resolution 1mV Accuracy 5mV Operating Temperature 0degrees ~ 50degrees (32F ~ ... Read More

YIERYI 2 in 1 PH Soil meter / fertility tester with 3 Probes Ideal instrument Gardening tools Features: For outdoor & indoor plants, gardens & grass lawn. Save water, energy and keep your plants, lawn, flower ... Read More

YIERYI ph soil meter digital 2 in 1 fertility tester with 3 Probes Ideal instrument for soil Specifications: Scales:PH,fertility Measuring range: PH:0~9 Package:260x110mm Probe length:8.5cm No need battery ... 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 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 ORP-2069 LCD Digital Type Red Pen PH Tester Water Quantity Pool Tester ORP Meter Application of ORP Industrial wastewater treatment A redox system used in water treatment, mainly the reduction of chromic ... Read More

Yieryi pen-Type ORP meter ORP2069 relectrical digital PH Meter Water Treatment Monitor Specifications: Range -1999~1999mV Resolution 1mV Accuracy 5mV LCD Display 4 Digits Battery 4 x 1.5V (AG-13) (Not Included) ... Read More

Yieryi Digital TDS-3 Tester Filter Pen Temp TDS ph meter 0-9999 PPM Set Filter Purity Specifications: Color:white Accuracy: 0.01 Resolution: 0.01 Probe Measuring Range: 0.00~14.00 Type: Precision glass bulb ... Read More