Ultrasonic Level Sensor Ultrasonic Water Tank Liquid Depth Level Meter Sensor Liquid Level Sensor with Temperature Display Water Level Gauge Automatic Water Addition Features: Automatic Water Addition: The power supply voltage range of the water pump control box is AC110-230V. Monitoring Temperature Changes: Effectively targeting liquids such as red wine that require specific temperature storage. IP65 Waterproof: Effective protection against rainwater splashing from any direction. Solar Charging: The solar panel assists in power supply and has a charging function for the rechargeable battery, using nickel hydrogen rechargeable batteries can reduce replacement to a certain extent the number of times the battery is used. Saving the cost of using the battery, when installing, please install the solar panel on the sunny side, when illuminated, it can provide electricity and charge the rechargeable battery. Ultrasonic Level Gauge: Widely used in monitoring and automatic control of container water level systems, it can be used for monitoring the liquid level storage capacity of containers such as boxes/tanks. It is easy to install and convenient e! Specifications: Model: TS-FT001 Material: ABS Color: White Water Pump Control Box: Operating Voltage: AC 110~230V Receiver: Indoor Temperature Range: 0℃~50℃, -32℉~122℉ Resolution: 0.1℃ Accuracy: ±1℃ Water Tank Temperature Range: -40℃~60℃, -40℉~140℉ Alarm Duration: 120 seconds Transmitter: Temperature Resolution: 0.1℃ Accuracy: ±1℃ Water Level Resotion: 0.01m Accuracy: ±0.05m Water Level Measurement Range: 1~5m Battery Usage: Receiver: Power by 3 * AAA 1.5V 900mAh batteries / Type-C power cord Receiver Battery Life: 12 months (reference time without backlight activation) Transmitter: Power by 6 * AAA 1.2V nickel hydrogen 900mAh rechargeable battery (Suggest customers e rechargeable batteries for convenient solar charging!) Transmitter Battery Life: 12 months (reference time without exposure to sunlight) Receiver Weight: 161g Receiver Size: 13.5 * 2.6 * 8.4cm Transmitter Weight: 137g Transmitter Size: 6.8 * 10.9 * 16.7cm Water Pump Control Box Weight: 134g Pump Control Box Size: 7 * 3.5 * 13cm Package Weight: 633g / 22.32oz Package Size: 14.5 * 12 * 16cm / 5.71 * 4.72 * 6.29in Package List: 1 * Receiver 1 * Transmitter 1 * Water Pump Control Box 1 * Type-C Power Cord 3 * Mounting Screws 1 * User Manual (English)