Description: _x000D_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. _x000D__x000D__x000D_Features: _x000D_This meter monitors tank liquid depth level, and displays on a 10-element LCD bar graph. _x000D_It can keep min/max records of tank liquid level. _x000D_Supports tank liquid level high/low alarm and tank liquid empty alert. _x000D_Displays indoor temperature ( or ) and tank temperature ( or ) at the same time. _x000D_The receiver can be put standing on desk or hanging on wall. _x000D__x000D__x000D_Specification: _x000D_Indoor Temperature Range: 0~50 _x000D_Outdoor Temperature Range: -40~60 _x000D_Temperature Accuracy: 1oC _x000D_Water Level Measure Rang: 0~15m _x000D_ Resolution: 0.01m _x000D_ Accurate: +/-0.03M _x000D_Transmission Frequency: 433MHZ _x000D_Transmission Range: 100 meters(300 feet)in open area _x000D_Transmission Interval: 30s when level changes or 3 minutes when level does not change _x000D_Receiver Battery: 2X AA 1.5V LR3 Alkaline batteries (Not included) _x000D_Transmitter Battery: 6X AAA 1.5V LR6 Alkaline or lithium batteries (Not included) _x000D_Battery Life: Minimum 12 months for receiver _x000D_ Minimum 12 months for transmitter _x000D_Receiver Size: 108*94*27mm _x000D_Transmitter Size: 97*68*152mm _x000D_LCD Size: 66*45mm(3.3 inch) _x000D_Suitable Liquid Type: All non-corrosive liquid_x000D__x000D_Open Distance: Approx.100M/328.1ft_x000D_Effective Distance : Approx.30M/98.4ft_x000D__x000D__x000D_Package Includes: _x000D_1 x Water Level Sensor Transmitter _x000D_1 x Indoor Receiver _x000D_2 x Screws_x000D__x000D_(Batteries are NOT included)_x000D__x000D__x000D__x000D_Note:_x000D_Note that the product is not waterproof._x000D_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 _x000D_2. The liquid level indicator has no data, press the tank key, and the data will be displayed._x000D_3. When reset, remove the battery Wait for a while and then turn on the power to eliminate the remaining power in the machine._x000D_4. Whether the red light of the transmitter flashes, the flashing is normal, and vice versa. 1This meter monitors tank liquid depth level, and displays on a 10?element LCD bar graph 2It can keep min/max records of tank liquid level 3Supports tank liquid level high/low alarm and tank liquid empty alert 4Displays indoor temperature ( or ) and tank temperature ( or ) at the same time 5The receiver can be put standing on desk or hanging on wall