Features 1、This meter monitors tank liquid depth level, and displays on a 10‑element LCD bar graph 2、It can keep min/max records of tank liquid level 3、Supports tank liquid level high/low alarm and tank liquid empty alert 4、Displays indoor temperature (℉ or ℃) and tank temperature (℉ or ℃) at the same time 5、The receiver can be put standing on desk or hanging on wall Specification Description: Keep an eye on your outdoor water tank from the comfort of your own living room, up to 100m away. Installed at the top of your water tank, the transmitter unit measures the water level using an ultrasonic sensor and temperature using a thermo sensor. You can hang the receiver unit on a wall or pull out the stand and place it on your kitchen bench top, table or desk. View your room's temperature, tank temperature and water level (represented by a 10 element bar graph). You can store min/max records and set alarms for specific water levels (high/low) or when empty. Features: This meter monitors tank liquid depth level, and displays on a 10-element LCD bar graph. It can keep min/max records of tank liquid level. Supports tank liquid level high/low alarm and tank liquid empty alert. Displays indoor temperature (℉ or ℃) and tank temperature (℉ or ℃) at the same time. The receiver can be put standing on desk or hanging on wall. Specification: Indoor Temperature Range: 0~50℃ Outdoor Temperature Range: -40~60℃ Temperature Accuracy: ±1oC Water Level Measure Rang: 0~15m Resolution: 0.01m Accurate: +/-0.03M Transmission Frequency: 433MHZ Transmission Range: 100 meters(300 feet)in open area Transmission Interval: 30s when level changes or 3 minutes when level does not change Receiver Battery: 2X AA 1.5V LR3 Alkaline batteries (Not included) Transmitter Battery: 6X AAA 1.5V LR6 Alkaline or lithium batteries (Not included) Battery Life: Minimum 12 months for receiver Minimum 12 months for transmitter Receiver Size: 108*94*27mm Transmitter Size: 97*68*152mm LCD Size: 66*45mm(3.3 inch) Suitable Liquid Type: All non-corrosive liquid Open Distance: Approx.100M/328.1ft Effective Distance : Approx.30M/98.4ft Package Includes: 1 x Water Level Sensor Transmitter 1 x Indoor Receiver 2 x Screws (Batteries are NOT included) Note: Note that the product is not waterproof. 1. Install the battery in the battery compartment of the transmitter, do not insert the battery compartment, and insert the battery synchronously after the receiver is set up 2. The liquid level indicator has no data, press the tank key, and the data will be displayed. 3. When reset, remove the battery Wait for a while and then turn on the power to eliminate the remaining power in the machine. 4. Whether the red light of the transmitter flashes, the flashing is normal, and vice versa. Package List