[LED Battery Monitor]: The battery level monitor can clearly display the remaining battery power of golf cart, YAMAHA Club Car, electric cars, motorcycles, lawnmower, boats, and trucks. Can switch voltage freely in 12V 24V 36V 48V 60V 72V (Note: For lead-acid batteries only) [Clear Stripe Display]: Golf cart battery test meter is designed for battery-powered devices to show the remaining battery level, with 10 segments LED bar design (1 red, 2 yellow, 7 green), each segment indicates 10% power level [Simple and Safe]: LED battery level indicator with installation instructions, life IP65 waterproof (Do not soak in water for a long time), positive and negative misconnection protection, high measurement accuracy, with bright backlight PVC waterproof screen protector to ensure long-term usability [Important Notes]: Old batteries will cause the waterproof battery monitor to measure inaccurately. If the battery still shows full charge after use, please adjust the dip switch code according to your needs, see the manual for details [Function Reminder]: After the battery power indicator is connected to the battery, the meter displays full capacity and waits for a period of time to display the actual power segment. When the remaining power is 20%, the second yellow light flashes, when the remaining power is 10%, the first red light and the second yellow light flash alternately to remind you to charge in time [Easy Installation]: 1. Find a suitable location to drill an accurate panel measuring 37x25 mm (1.5x 1 inch) and embed it for installation 2. Install it directly into the slot (if you happen to have a slot of this size) 3. Hang it for use, but pay attention to the wiring connections to avoid short circuits [After-sale Service]: If you have any questions, EXOEMTS professional customer service team will respond promptly and solve your problems within 24 hours, we are devoted to providing customer satisfying service EXOEMTS Battery Level Indicator provides a clear and easy-to-read indication of the remaining charge level of your battery, ensuring you always know when it needs to be recharged. Compatible with 12V, 24V, 36V, 48V, 60V and 72V systems, it's ideal for electric vehicles, forklifts and a wide range of other battery-powered machines, and is a tool that lets you take control of your battery's lifespan and avoid unplanned downtime. 1 red, 2 yellow and 7 green LED bar graphs provide a more intuitive display of the remaining battery capacity, IP65 waterproof, heat-resistant, low-power consumption (up to 5mA), high test accuracy, comes with mounting parts, easy to install, reverse protection design, reverse connection won't burn out. Accurate, with mounting parts, easy to install, reverse protection design, reverse connection will not burn out, help to extend battery life, two wiring methods (key switch, keyless switch). If you have any problems during purchase or use, please contact us to solve them.