Sonoff SPM-Main is a smart energy switch that allows you to measure energy consumption and supports Ethernet and Wi-Fi connectivity. It can control up to 128 channels and has overload protection to protect connected devices.
Sonoff SPM-Main is a smart energy switch that allows you to measure energy consumption and supports Ethernet and Wi-Fi connectivity. It can control up to 128 channels and has overload protection to protect connected devices.


Sonoff SPM-Main is a smart energy switch that allows you to measure energy consumption and supports Ethernet and Wi-Fi connectivity. It can control up to 128 channels and has overload protection to protect connected devices.
Guarantee
24 month
Delivery from Europe in
15 - 16
business days
Sonoff SPM-Main is a smart power switch that allows you to measure energy consumption and supports communication via Ethernet and Wi-Fi. It can control up to 128 channels and has overload protection to protect connected devices from damage.
Features | |
|---|---|
| Product type | Smart power switch |
| Brand | Sonoff |
| Model | SPM-Main |
Specifications | |
| Color | White |
| Input voltage | 100-240V ~50/60Hz 50mA max. |
| Wi-Fi standard | 802.11 b/g/n 2.4GHz |
| Material | PC V0 |
| Dimensions | 142.5 x 90 x 66.5 mm |
| Compatible SD cards | 8-32GB, SDHC |
Technical data | |
| Channel support | Up to 128 channels |
| Overload protection | Yes, with automatic shut-off |
| Energy consumption measurement | Yes, via the eWeLink app |
Safety warning | |
| Use the product only for its intended purpose to avoid hazards. | |
| Height | 100mm |
| Length | 200mm |
| Weight | 300g |
| Width | 150mm |