EASY INSTALLATION: Tuya compliant. Support automation with other Tuya device. Installs in circuit panel of most homes with clamp-on sensors. Supports Single, Split-Phase 120/240VAC, 3-Phase/4-wire 480Y/277VAC electricity system compatible. MONITORING ANYTIME, ANYWHERE: Real-time Voltage, Current, PowerFactor, ActivePower, Frequency measurement. Monitor your home's anywhere, anytime to prevent costly repairs, conserve , and save costs. Monitor solar metering. VARIOUS ELECTRICAL APPLIANCE MONITORING: Bi-Directional measurement. Comes with 16 50A sensors to accurately monitor your air conditioner, furnace, water heater, washer, dryer, range, etc., Weight: 4.2769678828 Pounds, Manufacturer: Prterver