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The Sonoff Smart Stackable Power Meter (SPM) is a professional category, DIN-rail compatible, stackable relay with power meter and overload protection.
- Connect up to 32 SPM-4-Relays. Each SPM-4Relay has 4 isolated channels to help you manage devices more conveniently. Note: SPM-Main Unit must be used with at least one SPM-4Relays.
- Power Metering. You can monitor the power consumption by checking the eWeLink app on your mobile phone. Obtaining current, voltage and power easily.
- Max. 20A/Gang. Each channel can support a maximum current of 20A, without fear of high power load.
- 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. Pickup and Same-day delivery possible. 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 contact us if you wish to add extra gift-wrapping. Extra costs apply.