Usage Tips:1: Parameters: AC power meter voltage measurement range is AC 40-300V, current measurement range is 0-100A, effective power range is 0-450000W, power range is 0-99999kWh. Frequency: 45.0Hz-65.0Hz, power factor: 0.00-1.00PF 2: 178 degree wide viewing angle, color LCD screen, very clear 3: Built-in CT makes wiring easier 4: Power consumption monitor: The monitor is a of high-cost energy equipment, helping you reduce power consumption and save money. 5: Automatic storage & memory function: When power is off, the power data be stored and memorized, which can be reset. Colour:As Shown Material:Metal Package Contents: 1set * energy monitor 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.