Green Backlit LCD Display Battery Capacity Voltage Meter Tester Voltmeter Monitor Features: LCD screen with green backlit. Long service life button with comfortable hand feeling. Equipped with a PVC film, the surface is waterproof. Built with buckle, free of screw installation. Universal battery capacity meter, need to set up by yourself. Specifications: Material: HTN / PCB Weight: 18g Size: Approx. 6 * 3.2 * 1.5cm / 2.4 * 1.3 * 0.6in Applicable scope: Battery pack, UPS, EPS, power supply, emergency power supply  Storage temperature: -20 ° ~ 60 ° Working current: ≤ 5mA Functions: 3. 10s delay auto off (Settable) 4. Double discharge curve selection (Settable) Package List: 1 x Connecting Cable