The DC power meter is a high- instrument for measuring voltage, current, power, and energy consumption in DC circuits. Featuring a high-definition color LCD, various alarms, bidirectional measurement, and data logging, it offers easy operation and high reliability. It accurately displays the remaining battery charge and is suitable for a variety of vehicles, including electric vehicles, outdoor power supplies, and sweepers. It is suitable for battery performance testing, solar system monitoring, and electric vehicle charging station inspections. Voltage measurement range: DC 8-80V 1% + 0.5V Current measurement range: 0-20A/50A 1% + 0.2A Power measurement range: 0-4000W 1% + 2W Energy range: 0-99999Wh Amp-hour range: 0-99999Ah Timer range: 99 days 59 hours Temperature: -20C to 99C 2% Display: 51x30mm color LCD Power failure memory: Yes Overvoltage warning: Yes Overcurrent warning: Yes Overtemperature warning: Yes Energy reset: Yes Timer reset: Yes Screen saver: Yes Color: Black Material: plastic Package Contents: 1 x Battery Charging Tester Only the above package content, other products are not included. Note: Light reflection 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.