Wireless Ultrasonic Water Level Monitor Tank Liquid Level High/Low Alarm Solar Powered Water Level Sensor Water Level Indicator Gauge IP65 Waterproof Specifications: Model: TS-FT003 Material: ABS Receiver: Indoor Temperature Range: 0℃~50℃ / 32℉~122℉ Resolution: 0.1℃ Accuracy: ±1℃ Water Tank Temperature Measurement Range: -40℃~60℃ / -40℉~140℉ Alarm Duration: 120 seconds Transmitter: Temperature Resolution: 0.1℃ Accuracy: ±1℃ Water Level Resolution: 0.01m Accuracy: ±0.05m Water Level Measurement Range: 1~5m Battery Usage: Receiver: USB to Type-C Wire / 3 * AAA batteries (Not included) Transmitter: 6 * AAA 1.2V NiMH 900mAh batteries  Receiver Screen Size: 112mm / 4.4in Receiver Size: 135 * 84 * 26mm / 5.31 * 3.31 * 1.02in Transmitter Size: 167 * 109 * 68mm / 6.57 * 4.29 * 2.67in Receiver Weight: 184g / 6.49oz Transmitter Weight: 216g / 7.62oz Package Weight: 610g / 21.51oz Package Size: 14.5 * 12 * 16cm / 5.71 * 4.72 * 6.29in