DIGITAL PEN-TYPE REDOX TESTER ORP METER TESTER WATER TREATMENT MONITOR We Gaby Instruments is the manufacturer And supplier of ORP Meter in Coimbatore, Kerala, Tirupur, Pollachi, Erode, Salem, Chennai, Karur, Banglore, Idukki, Cochin, Trishur, Ernakulam, Trivandrum, Madurai, Tirunelveli Specification: • Range : -1999 Mv To 1999 Mv • Accuracy : ±5 Mv • Resolution : 1 Mv • Lcd Display : 4 Digits • Operating Temperature : 0 - 50c • Calibration : By Mini Screwdriver (Included) • Packing :1 X Orp Meter 1 X Mini Screwdriver 1 X Instruction Manual