Note : The Main Unit and 4-Relay of the Stackable Power Meter need to be used together. The Main Unit is connected to at least one 4-Relay in order to function
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
