Accurate Liquid Depth Measurement: Utilize ultrasonic technology to monitor water tank levels accurately. efficient water management in residential or commercial settings. Integrated Temperature Sensor: Features a built-in temperature sensor that provides real-time updates, helping you maintain optimal conditions in your tank. Convenient Time Display and Alarm: Comes equipped with a digital time display for easy monitoring. The system includes an alarm function to alert you when levels are too high or too low, enhancing safety and preventing overflow or dry run. Backlight on/off function Transmitter low battery reminder Key sound on or off Water tank water level display unit: meter/foot (default: meter) Water tank liquid level high/low alarm mode Alarm sound on/off display, default on High/low water level display Highest/lowest water level alarm Alarm duration: 120 seconds Water level depth is simulated on a 10-element LCD bar graph Water level measurement range: 1-5m Transmitter protection level: IP65 (effective protection from rain splashing from any direction) Wireless transmission distance: 100 meters in the open air Power supply method (batteries not included in delivery): Receiver: 2xAAA battery power supply/USB to DC power cable power supply;Transmitter: 6xAAA battery power supply Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: White Material: ABS Package Contents: 1 x Receiver 1 x Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.