Sonoff SPM-Main smart switch Wi-Fi / Ethernet power meter

Sonoff SPM-Main smart switch that allows you to measure power consumption. The device is the main element of a system consisting of SPM-Main and SPM-4Relay. The device supports wired connectivity (Ethernet RJ45 port) and wireless Wi-Fi. The product is very versatile - it can handle up to 128 channels! For this purpose, it should be connected with the SPM-4Relay switch (max 32 pcs). SPM-Main is equipped with overload protection which will avoid damage to your devices. In addition, thanks to the built-in microSD card reader, you can protect the history of energy consumption up to 180 days! Specification:

< li> Producer: Sonoff
• Model: SPM-Main
• White color
• Input: 100-240V ~ 50 / 60Hz 50mA max.
• Wi-Fi: 802.11 b / g / n 2.4 GHz
• Material: PC V0
• Dimensions: 142.5 x 90 x 66.5 mm
• Compatible microSD cards: 8-32 GB (microSDHC)

The most important features:

• Many applications - The SPM-Main switch has many different applications - it enables, among others, checking how much electricity your tenants use per month, what is the energy consumption in your office, protection of expensive equipment in the server room - the switch has overload protection.
• Possibility of connecting devices - SPM-Main communicates with the cloud using the Ethernet RJ45 port or Wi-Fi. The connection with the SPM-4Relay switches is done via the RS-485 port, thus ensuring stable transmission over long distances.
• Support for up to 128 channels - One SPM-Main module allows you to connect and control up to 32 SPM-4Relay switches. Each SPM-4Relay offers up to 4 independent channels with a maximum load of 20 A each. Thanks to this, SPM-Main can handle up to 128 channels! This makes it an ideal solution for apartment blocks - it allows you to check energy consumption in 128 apartments.
• Energy history on the microSD card - The product allows you to save the history of energy consumption measurements for the last 180 days. The switch is equipped with a microSD card reader (8-32 GB, microSDHC). This makes it possible to conveniently export data and ensure that important information is secured.

Note: microSD card and SPM-4Relay are not included in the set.

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