SONOFF SONOF Smart Stackable Power Meter (4-Relay)

SONOFF stackable power meter achieves intelligent management with overload protection, metadata monitoring and electricity statistics. The SPM-Main communicates with the cloud via Ethernet or WiFi, and communicates with SPM-4 relays via RS-485, which allows multi-terminal and stable long-distance data transmission. Do you want to know the evolution of the electricity consumption of each stand? Want to achieve unified management of the entire shopping center? By checking the eWeLink app on your mobile phone, you can monitor electricity consumption without leaving home. With the eWeLink app, you can get power consumption with a simple touch. Once overload protection is turned on, you no longer have to worry about electrical appliances being burned, eliminating potential safety risks. In addition, you can also turn on the overload delay to prevent untimely triggers. An SPM-Main can be connected to 32SPM-4Relays. Each SPM-4Relay has 4 isolated channels to help the tenant solve the electric charge sharing problem. Each channel can withstand a maximum current of 20A, without fear of high power load. Get over 180 days of power consumption data available on the local storage SD card. You can insert the SD card into SPM-Main to download and verify more than 180 days of your power consumption history at any time of the day via the HTTP API. No need to worry about missing important information.