<p>Features: This meter monitors tank liquid depth level, and displays on a 10-elements LCD bar graph</p> <p>It can keep min\/max records of tank liquid level</p> <p>Supports tank liquid level high\/low alarm and tank liquid empty alert</p> <p>Displays indoor temperature (2109 or 2103) and tank temperature (2109 or 2103) at the same time</p> <p>The receiver can be put standing on desk or hanging on wall.</p> <p>Specification: </p> <p>Transmission distance: max.100 meters( in open space)</p> <p>Frequency: 433MHz</p> <p>Indoor temperature range: -502103-0</p> <p>Resolution: 12103</p> <p>Accuracy: 00B112103</p> <p>Tank temperature measure range: -40~-602103</p> <p>Resolution: 12103</p> <p>Accuracy: 00B112103</p> <p>Water level measure range: 0-15m</p> <p>Resolution: 0.01m</p> <p>Accuracy: 00B10.03m</p> <p>Alarm duration: 120sec</p> <p>Power consumption: </p> <p>Indoor receiver: 2xAA 1.5V batteries(without)</p> <p>Tank transmitter: 6xAAA 1.5V batteries(without)</p> <p>Material: plastic</p> <p>colour: White+black</p> <p>Package Contents: </p> <p>1 x transmitter</p> <p>1 x receiver</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>