1. 100% -quality products. 2. Made of high-quality materials, and practical. 3. Small size, simple application, and easy installation. 4. Efficient and stable performance, high precision, and long working life. 5. Widely applicable. network voltage direct power supply, no external power supply, measurement precision, large-screen LCD liquid crystal screen display clearly. electrical parameter measurement function (voltage, current, active power, power). overload alarm function (over power alarm threshold, the backlight and power flicker tips). The power alarm threshold preset function (can set up their own power alarm threshold). The power button clear function. Power-down data storage function. Operating Temperature:-25C-45C Accuracy Class:1 Model Number:Ampere Voltmeter Power tester Display Type:Analog and Digital current: 100A Measurable voltage range: 110-250V Measurable current range: 0-100A Rated power: 22000W Working Frequency: 45-65Hz Model: P06S-100 name: digital voltmeter Colour:black Material:plastic Package Contents: 1 x digital voltmeter 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.