Relay Control DIN - Main Unit - SPM

Sonoff SPM is a modular system consisting of this main controller and can be expanded with Sonoff's 4-channel DIN relay, which we also sell. SPM-Main can handle up to 32 of these DIN relays, allowing you to control a total of 128 relay ports!

Each relay has power measurement and data is stored locally for up to six months (requires an SD card).

The main unit connects directly to your WiFi or with an Ethernet cable. The relay units are connected in series with the main unit using the included cables and can be replaced with longer ones if needed.

Easily pairs with the eWeLink app, available for Android and iOS. Can also be paired with the built-in web server and a web browser.

It is ideal for use in homes to centrally control devices, but can also be used in the industry for larger installations or in rental properties, for example, to monitor individual consumption.

The device belongs to Sonoff's DIY segment, which means that the software can be replaced to run, for example, Tasmota. It is also possible to write custom software in Arduino to control and monitor the relays.