HD Color LCD Display】This AC voltmeter ammeter is with 360° viewing without blind spots, with backlight function, it can be clearly seen day and night 【6 in 1 Multimeter】This digital energy meter can measure AC voltage 50.0-300.0V, AC current 0.0-99.99A, power factor 0.00-1.00PF, active power 0-30000W, electric energy 0-99999kWh and frequency 45.0-65.0Hz, 6 data displays on one screen at the same time. Auto-save and reset function】1. When the power is off, the electric energy value will be automatically saved. This power meter will read the value after the next power-on and continue to add to the number of saved values. 2. The energy reset button is at the bottom right of the meter, you can press the button with a needle for 4 seconds, then the electric energy will be reset. 【Wide range of applications】 This multi-function volt-ampere wattmeter monitor is easy to install in a panel. Widely used in power measurement systems, school, market, household appliances, industry, laboratory,