Free DELIVERY for $30+ Orders – cash on delivery
Sonoff’s Smart Stackable Power Meter (SPM) is a professional category, DIN-rail compatible, stackable relay with power meter and overload protection, with up to 20A per channel max. capacity. It can save consumption to a memory card (not an accessory).
- Communicated by RS-485. The SPM-Main communicates with the SPM-4Relays via RS-485, which enables multi-terminal and stable long-distance data transmission.
- Overload Protection. Once the overcharge protection is activated, it protects your device from burns.
- Works With Alexa & Google Assistant. You can directly ask your Amazon Echo Dot or Echo Show and Google Assistant speakers/smart displays to turn on/off your 4 outputs independently.
Delivery, Returns & Warranty
Free delivery in Lebanon for orders exceeding 30$. Pickup and Same-day delivery available. Learn More.
15-day returns on any order. Return policy exclusions apply. Learn More.
We warranty our products to be free of manufacturing defects, and we will repair or replace with a new product, at our option, any product sold by us that is deemed defective. Exclusions apply. Learn More.
Is this a gift or surprise? Please choose a gift-wrapping option on the checkout page if you wish to add extra gift-wrapping. Extra costs may apply.