Features: LCD display with Backlight, Pulse LED indicates working of meter. 35mm din rail installation, The meter is multifunctional display Energy kWh, temporary Energy kWh, real Voltage, real Current, by manual pressing. Hold the button for 6 seconds to Reset the temporary kWh Two wiring modes: upper input lower output+lower input upper output NOTE: This Temporary kWh is available RESET to be Zero . The kWh can not be Reset. Maximum current: 80A Pulse frequency: 1000imp / kwh Voltage: 120V Material: Plastic colour: Grey+white Package Contents: 1 x Energy KWh 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.