10-segment LED bar graph display. The clear LCD screen of the battery gauge displays the battery level icon and the battery capacity percentage. LED flashing for low and high charge warning. The battery level indicator is specially designed to monitor the battery power level during charging or discharging. Memory option to recall the electricity quantity. The LED battery indicator is nice and long-lasting use. The battery level indicator is made of high quality material to keep your car charger always looking new. The battery gauge works for 12V/24V, 36V, 48V/72V batteries of golf cart, marine, motorcycle, , tractor, truck, forklift, etc. Metric gauge to buy with installation accessories, easy to install, the digital battery indicator is encapsulated by sealed epoxy resin and the waterproof grade reaches IP65. Operating Current: 20mA nominal Accuracy: +/- 0.5% Operating Temperature: -40 Celsius - +85 Celsius Humidity: 95% (non-condensing) at 32 Celsius or above for 2 hours Note Please