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 and temperature using an ultrasonic sensor. You can hang the receiver unit on a wall (hooks) 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: • Transmission range up to 100m • Time display (12/24hr) • Time alarm mode • Calendar display • Indoor temp. display (°C/°F) • Tank temp display (°C/°F) • Tank level display (metre/feet) • Water level displayed on a 10 element bar graph • Min. & Max. records for indoor & tank temp. • Tank level alarm mode (high/low) • Tank empty alert • Low battery indicator • Tank level updated every 30 seconds or 3 mins • Wall mount, Free standing • Long life battery installed in the solar transmitter. • Battery power: receiver 2 x AA 1.5V (not included), outdoor transmitter: 6 x AAA 1.5V (not included) • Dimension: - Receiver: 106(L) x 97(W) x 24(D)mm - Sensor (into tank): approx 47(Dia.)mm Specifications Indoor Temperature Range Celcius : 0.0°C Celcius Temperature Accuracy : +/- 1 % Measures in Celcius : true Measures in Fahrenheit : true Thermometer Resolution : 1.0°C Length : 106.0mm Width : 97.0mm Depth : 24.0mm Dimensions for : Receiver Disposable battery required to power : Main Product Battery type : AA Battery Quantity : 2.0pc Battery type : AAA Battery Pack Quantity : 6.0pc Battery used for : Transmitter Weather Station Style : Weather Station Sensor Type : Remote wireless sensor Sensor Battery Size : AAA Sensor Battery Quantity : 6.0pc Sensor Battery Type : Alkaline Additional Part Type : Sensor Diameter : 47.0mm Tank empty alert : true Tank level display : metres Tank level depth : 0.0m, 15.0m