LEIGAO Ac40-300v 100a Digital Energy Meter Calibrated Alternating Current Meter Kwh Ammeter Voltmeter Intermediate Meter Wide Application: This power meter monitor is easy to install and can be used indoors or outdoors. Widely used in power measurement system, school, market, home appliance, industry, laboratory, etc. 6 in 1 MultimeterOne interface displays 6 kinds of measurement parameters simultaneously, including voltage: 40-300V, current: 0-100 A, electrical power: 0-30000W, energy: 0-9999 kWh, frequency: 45-65 Hz and power factors: 0-1PF. Best visual experienceHD color LCD display, 178 vision without blind spot, with backlight function, this AC KWh meter is clearly visible day or night. Multi-function 1. Data reset for multiple measurement requirements. Press the reset button for five seconds, the digital counter will be reset. 2. The value of electric energy and electric energy of accumulated time is automatically saved when the device is turned off. When the measurement voltage is reconnected, the data continues to be accumulated. Safe and High AccuracyThis single-phase digital meter features high-quality flame-retardant ABS material and high-precision chip, this which makes it safe to use with high precision. AttentionThe multimeter can only be used to measure AC 50/60 Hz in the city. It is destroyed when used to measure rectangular waves and non-standard sine waves. Main function: Electrical parameter measurement function (voltage, current, active power, energy, frequency, power factor )Reset dataSave data when power offLarge LCD displayBacklight function Dimensions (L x W x H): 52 x 63 x 80 mm Quantity delivered: 1 piece