Features [Appliance Monitoring]: Energy monitor come with three 300A sensors to accurately monitor your air conditioner, stove, water heater, washer, dryer and more [Energy Monitoring]: Electricity meter monitor your home actual power anytime and anywhere to prevent expensive repairs, save energy, and save money [Measurement Object]: Clamp current transformer support voltage, current, and power factor measurement, and support linkage with other for tuya [Real Time Data]: Energy monitor requires 2.4 GHz WIFI with Internet connection to monitor energy usage through a mobile application. Provide 2 seconds of data with ±2% accuracy [Easy To Use]: The power clamp is lightweight and easy to install, and help you monitor power usage in your facility by connecting clamp to power cord Package List 1 x Three Phase Smart Meter 1 x Antenna 1 x Antenna Base 4 x Accessories