4 Digits Garden Soil Moisture Tester Lightweight With -1999~1999mV Range

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 acid and the oxidation of cyanide. If two sodium sulphide or sulfur dioxide is added to the waste water, six valence chromium ions can be turned into trivalent chromium. If added chlorine or sodium hypochlorite can be used to oxidize cyanide, followed by hydrolysis of cyanogen chloride to form cyanate. This chemical reaction is called a redox reaction system. Oxidation-reduction potential is the measurement of electronic activity, which is similar to the method of measuring hydrogen ion activity

Specifications:

• Range: -1999~1999mV
• Resolution: 1mV
• Accuracy: ±5mV
• LCD Display : 4 Digits
• Battery: 4 x 1.5V (AG-13) (Not Included)
• Operating Temperature: 0~50°C
• Calibration : manual by mini screwdriver (included)
• Item Color: Red
• Dimension: 151 x 33 x 20mm
• Weight: 76g

Features:

• It has protective cap that helps reduce contamination
• Clear LCD with backlight function
• Provides instant display of measured value
• Compact pensize and light weight for mobility
• With CE RoHS Marking, passed & comply with all the necessary health and safety required standards set by the European Directives

Packing List:

• 1 x Digital Pentype ORP Meter
• 1 x Mini Screwdriver / Trimmer
• 1 x English Instruction Manual

​