the battery gauge indicators are compatible with 12V/ 24V/ 36V/ 48V/ 60V/ 72V/ 84V acid battery, ternary lithium battery, polymer lithium-ion battery, 3 -15 series lithium ion battery, storage battery, water battery and more; Battery Capacity Voltage Meter with Alarm and External Temperature Sensor 0-179°F Temperature Monitor 12V 24V 36V 48V 60V 72V Acid Battery Lithium Battery Gauge Meter for Most Cars; DC 12V 24V 36V 48V 72V Battery Meter with Alarm, Front Setting and Switch Key; low working power consumption and the max is 5 mA; Clear and Bright
LCD Display: The battery monitor is designed with high quality LCD, offers clear and bright display from every angle. Automatically turn into sleep mode in 10s for saving the power.; PVC
Waterproof Screen Protector: Waterproof shell with two buttons. The function button is for switching from Capacity, Voltage and Turn off. Choose to display voltage, battery capacity percentage alone or in turn by pressing the function button. The setting button is for select battery specifications and so on.