ORP METER , WATER PROOF 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: MV 0～±1999Mv • TEMP：-50℃-70℃(-58℉-158℉) • Resolution: MV 1mV • TEMP：0.1℃(0.2℉) • Accuracy: MV ±5mV • TEMP：±1℃(±2℉) • Battery: 4×1.5V(AG-13) • Operating Temperature: 0℃~50℃ • Dimensions: 188mm×35mm×35mm • Weight: 80g