RM1307731646899599 1. Working voltage: 80 ~ 260VAC 2. Test voltage: 80 ~ 260VAC 3. Rated power: 20A/4500W 4. Operating frequency: 45-65Hz 5. Measurement accuracy: 1.0 grade Function 1. Electrical parameter measurement function (voltage, current, active power, energy) 2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm). 3. Power alarm threshold preset function (can set power alarm threshold). 4. The reset function of energy key. 5. Store data when power off. 6. Large-screen LCD (display voltage, current, active power, energy at the same time) 7. Backlight function. Display format 1.Power: test range: 0~4.5kW within 1KW, the display format is 0.0~999.9W; 1KW and above, the display format is 1000~4500W. 2.Energy: test range: 0~9999kWh Within 10KWh, the display format is 0~9999Wh; 10kWh and above, the display format is 10~9999kWh. 3.Voltage: test range: 80~260V Display format: 80~260V 4.Current: test range: 0~20A <p style="box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; font-size: 14px; line-height: inhe