Features Voltage Range: Multifunctional battery capacity display, the monitoring voltage range is 8-63V, suitable for lithium batteries, acid batteries, etc. Easy connection: this battery capacity meter is small and compact, easy to connect and use, with reverse connection protection to prevent burnout. Right Adjustment Button The right button of the battery tester can be used to switch the voltmeter and battery percentage and turn off the battery tester. Left adjustment key: the left button can be used to turn on voltmeter and battery percentage, background lighting on, adjust sleep mode, select battery type, etc. Waterproof shell: the voltage indicator case is made of PC, with waterproof surface, good toughness, wear resistance and corrosion resistance. Specification: Item type: battery indicator. Material: PC. Model: LY6W. Voltage Range: 8-63V Package list: 1 x battery indicator. 1 x cable Package List 1 x Battery Meter 1 x Cable