1、TRUE MEASUREMENT: Users can measure the corresponding parameters according to the actual situation, current voltage and battery capacity percentage. 2、SAFETY USE: With low voltage alarm, which is adjustable, could automatic shutdown, reduce consumption, with discharge protection, extends battery life. 3、WIDE COMPATIBILITY: Support lithium battery, acid battery, lithium iron phosphate battery, and can also be used for other types of batteries and power supplies, also support multiple batteries in series. 4、DIGITAL DISPLAY: Adopt high brightness digital tube display, the parameters can be viewed clearly and intuitively. 5、WIDE APPLICATION: This test module is widely used in automobile, mobile equipment, ships, outdoor equipment and other applications. Item Type: Battery True Capacity Module Material: ABS Model: XH M240 Display Accuracy: 0.1 Measurement Accuracy: 1 АН Standby Current: 5-7mA Load Power: 10W 8Ω Installation Aperture: Approx. 3mm/0.1in 1 x Battery True Capacity Module Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store