TDS/EC/PPM Meter Water Quality Tester Pen Meter Conductivity Pen Water Quality Horticulture Test Pen Hydroponic Tester M

Welcome to GVI GroupBuy Mall! Accuracy: + / - 2% TDS range: 1~9990ppm EC range: 1~9990us/cm Voltage: 3 v Resolution: 1ppm & 1us/cm Weight: 66 g Size: 30 * 14 * 154 mm Color: white, blue Battery: Button battery CR2032 (included in shipment) Functions: TDS water quality monitoring, EC conductivity monitoring, temperature detection