1. Voltage alarm function: low over-voltage alarm threshold, screen flash alarm prompt. 2. Voltage calibration function, current setting function, current clearing function, current calibration function. 3. Power-down data saving function, backlight timing function, low voltage setting function, capacity setting function. 4. Electrical parameter measurement function, the same screen display: voltage, current, power, capacity, timing, percentage. 5. Wide range of applications: suitable for high and low power distribution cabinets, photovoltaic inverters, assembly line testing, electronic maintenance, DIY, etc. Note:Due to different production batches, the color of accessories is random, no specification is accepted, and it does not affect the use. Voltage measurement range:DC 7.5-100V Display format:10.0-99.9V Timing range:0-1000 hours Timing display format:999.59 hours/minute Display format:20A: 0.00-19.9A Power measurement range: 20A:0-2kW Display format within 1KW:0-999W Above 1KW display format:1.00-1.99kW Current measurement range:0-20A Colour:As Shown Material:Plastic Size:91x50.5x23.4mm Package Contents: 1 * Power meter 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.