1、[Multifunction] This voltage power meter can do the versatile measurement, under voltage and under current setting, blue backlight function, power zeroing function. 2、[LCD Digital Display] The electricity meter monitor has the large screen LCD digital display and can measure the voltage, current, power and electricity. 3、[Power Failure Data Memory] Voltage current meter voltmeter ammeter not only has the power reset button setting, but also has the power failure data memory storage. The voltage is DC6‑200V. 4、[Programmable] Voltage current meter monitor is easy to install and use. Allows you to program percentages with the corresponding voltage. 5、[Wide Use] Voltage power meter can be used as battery voltmeter, battery capacity meter and temperature indicator panel for automobile, ship, RV, boat, etc.