Features 1.Double button design, easy to set up, can be set in just a few seconds. 2.Equipped with a switch, you can turn off the power, no power consumption after turning off. 3.Accurately display the battery power percentage, voltage, and intuitively grasp the battery usage status. 4.When the power value is lower than or equal to 20%, the backlight flashes an alarm. 5.Compatible with lead acid battery, lithium battery, iron lithium battery which can be set by yourself. specificationFeatures:_x000D_ _x000D_ Double button design, easy to set up, can be set in just a few seconds. _x000D_ Equipped with a switch, you can turn off the power, no power consumption after turning off. _x000D_ Accurately display the battery power percentage, voltage, and intuitively grasp the battery usage status. _x000D_ When the power value is lower than or equal to 20%, the backlight flashes an alarm. _x000D_ Compatible with lead acid battery, lithium battery, iron lithium battery which can be set by yourself. _x000D_ _x000D_ :_x000D_ Material: PCB/HTN_x000D_ Light Color: White Light, Blue Light, Green Light (optional)_x000D_ Display Range: 8-100V_x000D_ Applicable Battery Voltage: 12-84V_x000D_ Compatible Battery: Lead acid battery, lithium battery, iron lithium battery (can be set by yourself.)_x000D_ Display Mode: LCD_x000D_ Product Size: Approx. 6x3.3x1.4cm / 2.4x1.3x0.6inch_x000D_ _x000D_ Package List:_x000D_ 1 x Display_x000D_ 1 x Connection Line PackageList