Wireless Solar Power Meter for Solar Power (AC), Monitor Displays Live KW (Kilo-Watts of AC Power Generation), Records the Solar PV Electricity Prodtion in Kwh, Shows Money Savings and Co2 Avoiaded. Used also for Monitoring Electricity Generation from Wind or Other GeneraterWireless Solar Power Meter for Solar Pane (AC), Monitor Displays Live KW (Kilo-Watts of AC Power Generation), Records the Solar PV Electricity Prodtion in Kwh, Shows Money Savings and Co2 Avoiaded. Used also for Monitoring Electricity Generation from Wind or Other Generater Solar Power Monitor, AC Output power Inverter - Realtime Generation in KW, Records Data Displays Cumulative Electricity Production: Hour / Day /Week /Month /Year /Total Wirelessly Monitor your solar generation from inside your home - put in in kichen or living room Also, works with wind or any generators. Put the sensor clamp round the line wire (generally of black or red color wire), not around neutral (white). Only One Clamp needed for 120V AC or 240VAC