YIERYI Digital Pen-type tester ORP-969 Pen-Type ORP Meter VOxidation Reduction Analyzer Features: Use to measure the amount of Oxidation Reduction Potential (ORP) level. The tendency of the solution to either ... Leia mais
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 (32°F ~ ... Leia mais
YIERYI TDS Meter Water Measurement Tool TDS / EC Tester 0-4999ppm Temperature Tester TDS02 pen can simultaneously detect liquid TDS value, water measuring probe is made of titanium alloy materials, the biggest ... Leia mais
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 ... Leia mais
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... Leia mais
Smart Handheld 6-in-1 Dissolved Oxygen/PH/TDS/EC/SALT/TEMP Water Quality Analyzer Operating System iOS 7.0 or later, Android 4.3 or later Tester Automatic Calibration pH Tester Capacity 1500ml (57oz) Probe ... Leia mais