Smart Stackable Power Meter Master,Work with SPM-4Relay,Realize The Intelligent Management of Households Adapting to The Stepped Electricity Price(SPM-Main)

Description

⚡ Power up your smart home with precision and control!

The SONOFF Smart Stackable Power Meter Master (SPM-Main) is a cutting-edge home automation hub that connects up to 32 SPM-4Relay units, enabling control of 128 isolated channels. It offers real-time monitoring of voltage, current, and power consumption through the eWeLink app, supports a maximum current of 20A per channel, and uses RS-485 communication for stable, long-distance data transfer. With built-in overload protection, it ensures both efficiency and safety in managing household electricity, perfectly adapting to stepped electricity pricing.