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Description
Connect up to 32 SPM-4Relays : One SPM-Main can be connected 32 SPM-4Relays. Each SPM-4Relay has 4 isolated channels to help you manage devices more conveniently.
Power metering : You can monitor the power consumption by checking eWeLink App on your mobile phone. Obtaining current, voltage and power easily.
Max. 20A/Gang : Each channel can support maximum current of 20A, no fear of high power load.
Communicated by RS-485 : The SPM-Main communicates with the SPM-4Relays through RS-485, which allows for multi-terminal and stable long-distance data transmission.
Overload Protection : Once the overload protection is enabled, it can protect your devices from burning out.
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