<p>This meter allows you to know the state of the outdoor water tank without leaving living room.</p> <p>You can mount it on the top of your water tank, the meter can measure the precise temperature with an ultrasonic sensor.</p> <p>Check your room's temperature, tank temperature and water level.</p> <p>You can store min\/max records and set alarms for specific water levels (high\/low) or when empty.</p> <p>Transmission range up to 100m (free field)</p> <p>Water level displayed on a 10 elements bar graph</p> <p>With tank empty alert, safe to use.</p> <p>Low battery indicator</p> <p>Time display at 12\/24hr system.</p> <p>Tank level display at metre or feet.</p> <p>Two tank level alarm mode: high\/low</p> <p>Battery power:</p> <p>Receiver 2 x AA 1.5V (not included),</p> <p>Outdoor transmitter: 6 x AAA 1.5V (not included)</p> <p>Indoor temperature range:0~60degree Celsius</p> <p>Outdoor temperature range :-40~60degree Celsius</p> <p>Temperature accuracy:1degree Celsius</p> <p>Water level measure range: 0 ~15m</p> <p>Resolution: 0.01m</p> <p>Accurate: +\/-0.03m</p> <p>Colour:white+black</p> <p>Material:plastic</p> <p>Package Contents:</p> <p>1 x Water Level Sensor Transmitter</p> <p>1 x Indoor Receiver</p> <p>2 x Screws</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>