1. LCD display, display the charging current, battery voltage 2. Charge power, PV power, charge capcity,Load voltage, load cruuent 3. Charge AH values can be return to zero anytime 4. Backlight brightness adjustable 5. Installation is simple and convenient Working voltage: 12V or 24 V Voltage range: 8V-32V Working current: 3-30 mA (according to backlight brightness) Capacity range: 20-999 LCD Display area: 49 x 28mm Backlight: LED Weight: 75g This model of monitor is suitable for product models of: MPPT5012A-DUO-BT,MPPT5025A-DUO-BT,MPPT5020,MPPT5040,MPPT5020-BT,MPPT5040-BT. colour:Black Material:ABS size:110 x 110 x 40mm Package Contents: 1 x LCD 1 x cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.