the digital battery monitor is a must have for any enthusiast, supporting a wide range of batteries from 8-100V; Whether you have a ternary lithium, lead-acid, , or LiFePO4 battery, this battery monitor adapts seamlessly; It's good as a golf cart battery tester or for your electric motorcycle and more designed in sleek black and measuring just 2.41 x 1.31 x 0.53 inches (61.3 x 33.3 x 13.5 mm), this battery tester with alarm and temperature is compact enough to fit anywhere; Despite its size, the bright LCD screen ensures you can easily read the battery's voltage and capacity, providing convenience without compromise Advanced Alarm and Temperature Features: stay informed with the battery tester with alarm and temperature settings; Short the "SET" key to change the voltage and temperature (Celsius); Long to change multiple modes: mode 1 lead-acid P setting, mode 2 ternary L setting, mode 3 iron lithium battery F setting, mode 4 custom high and low voltage settings with a simple setup - red wire to positive, black wire to negative, and a handy 7.87 inch wire length, installing this battery tester is straightforward; The calibration hole ensures precise voltage adjustments, enhancing safety while using your digital battery monitor this battery monitor is applicable across diverse platforms; Whether you're checking electric motorcycles, golf carts, cars, boats, or medical equipment, it provides accurate readings every time; It's your versatile golf cart battery tester and beyond Features: Comprehensive Package for Daily Use: Never run out of options with the battery monitor bulk package. It includes four battery testers, sufficient , whether you're or managing multiple vehicles. You'll have the right tool on hand for any situation, offering peace of mind and readiness. Indoor Use and Easy Learning Curve: Note that this digital battery monitor is designed for indoor use only, ensuring . The included instructions you can quickly master the device and use it to its full potential, making it an essential tool for tech enthusiasts and professionals alike. Specifications: Color: black Size: 2.41 x 1.31 x 0.53 inches/ 61.3 x 33.3 x 13.5 mm 4 x Battery monitors Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Material: ABS Package Contents: 4*pcs battery monitor Only the above package content, other products are not included. 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.