PREMIUM QUALITY&CONVENIENT TO USE】This liquid level sensor adopts of anti-corrosion material,excellent anti-corrosion performance and durable.Anti blocking design,easy to clean.This meter monitors tank liquid depth level, and displays on a 10-element LCD bar graph.Displays indoor temperature (℉ or ℃) and tank temperature (℉ or ℃) at the same time. 【PRODUCT PARAMETERS】 Indoor Temperature Range: 0~60℃;Outdoor Temperature Range: -40~60℃;Temperature Accuracy: ±1oC;Water Level Measure Rang: 0~15m