Check the listing for details. Universal USB Digtal Voltmeter 12V Acid Battery Display Meter. Condition: New. Listed at 5.48 USD. Universal USB Digtal Voltmeter 12V Acid Battery Display Meter Features: With Display , which can greatly save valuable battery power. It is not long-term display, the service life is greatly extended. display electricity and at a glance. The display is more intuitive. The upward 8 color bars show the battery power and the downstream meter (display battery voltage), and the voltmeter decimal point automatic accuracy is . 12V acid battery :(can be used with 4 strings of lithium iron phosphate battery) The battery is greater than 9.7v and is 1 The battery is greater than 10.2v, and the battery is 2 grids bright. The battery is greater than 10.7v, and the battery is 3 grids bright. The battery is greater than 11.1v, and the battery is 4 grids bright. The battery is greater than 11.7v, and the battery is 5 grids bright. The battery is greater than 12.2v, and the battery is 6 grids bright. The battery is greater than 12.6v, and the battery is 7 grids bright. The battery is greater than 13.0v, and the battery is 8 grids bright. Specifications: 8-grid battery : 10% 25% 40% 50% 60% 75% 90% The accuracy of the voltmeter is about 3% Working temperature: -10 ~ +65 ℃ Working humidity: 10~80% (no condensation) for material: ABS Panel size: 48x29mm/1.89x1.14inch Color: Black LED display color: Red Quantity: 1 Pc Package Includes: 1 x Battery Capacity note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!