Features:Display of 10 segment LED bar graph.Work for both 12V and 24V lead battery.Wide operating voltage and temperature range.Specifically designed to monitor the power level of lead battery while charging or discharging.Range indication: Green: 41~100%， Yellow: 21~40%， Red: 20% and lessSpecifications:Operating voltage: 12V&24VOperating Temperature: -40?~85?Storage Temperature: -50?~90?Humidity: 95% RH (non-condensing) at 38?Terminals: Max. 3; 3/16?��-spadesMounting: U-shape bracketProduct size: 5.3 * 3.2 * 3.8cm / 2.1 * 1.3 * 1.5inProduct weight: 26g / 0.9ozPackage size: 6.5 * 5.2 * 4.3cm / 2.6 * 2 * 1.7inPackage weight: 36g / 1.3ozPackage including:1 * Battery Indicator1 * Pack of Accessories