SONOFF smart power monitoring unit SPM-MAIN WiFi/Ethernet, 20A
This Sonoff smart unit allows you to monitor energy usage in your home or business. Through the eWeLink smartphone app you can receive important information at any time that helps you always have control over your household energy consumption. In addition, it has a port for a micro SD memory card to store the energy usage history for up to 180 days. SPM-MAIN communicates with the Cloud via Ethernet or WiFi and with up to 32x SPM-4RELAY relay modules (128 channels) via RS-485.
-Energy measurement -Up to 128 isolated channels -Max. 20A per channel -Overload protection - RS-485 communication -Schedule -Ethernet or WiFi connection
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