Features: This battery capacity display is made from plastic materials for long use. Lowvoltage alarm, highs voltage alarm, over current alarm, low capacity alarm. Full screen can display all the data, more intuitives. Easily monitor your battery status with this user friendly meter that offer clear data displays. This multimeter can be used as battery voltage meter, battery capacity tester and temperature indicator panel for car, marine, boats, etc. Specifications: Material:ABS Type:with Bluetooth-compatible,without Bluetooth-compatible (optional) Current measurements: 50A/100A/200A/400A (optional) Supply voltage range: DC5-120V Voltage measurements voltage: DC0-300Volt Voltage resolution: 0.1V Capacity measurements Range: 0-999AH (Note: 0-2000AH can be reached when only the percentage is displayed) Power measurements range: 0~999KW Power measurements Range: 0~999KWH Installation Slotting Dimension: Slotting Dimension: 76mm/2.99''x41mm/1.59'' (20mm/0.79'' in threading hole diameter) Package Includes: 1x Battery Monitor 1x Shunts 1x Connect Cable 1x Power Cord note: Please allow 1mm errors due to manual measurements. Due to the differences between different monitors, the picture may not reflect the actual color.