Feature: 1. Comprehensive Monitoring: Equipped with a water level monitor, this device not only tracks the minimum and maximum liquid levels but also supports high/low level and empty tank alarms. This ensures you are fully informed about your tank's status, preventing overflows and ensuring efficient water management. 2. Temperature Display: The water level sensor uniquely integrates the measurement of both indoor temperature and tank temperature, providing critical data that can influence the performance of your water system. 3. 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.  4. Versatile Installation Options: With its ability to stand on a desk or be mounted on a wall, the water tank liquid depth level meter sensor offers flexible installation choices to suit various environments and user preferences, enhancing its usability and accessibility. 5. 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 to use Specification: 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 Package List: Package List: 1 * Receiver 1 * Transmitter 2 * Installation Screws 1 * USB to Type-C Wire 1 * User Manual (English)