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Sonoff SPM-4Relay smart switch The Sonoff SPM-4Relay smart switch, which in combination with the SPM-Main module (sold separately) enables energy consumption measurement. It handles 4 independent channels and also allows you to use overload protection to protect the device from damage. At the same time, the product is very easy to install - you can easily mount it on the guide bar.
More apps Sonoff SPM-4Relay switches will prove themselves in many applications. For example, it allows you to check how much electricity your tenants use per month, as well as the energy consumption of a shopping center or office. The product will also prove itself in a cryptocurrency mine or server room. Thanks to the overload protection function, you reduce the risk of damage to the device.
Reliable connection How does it all work? Sonoff gives you the option to connect your devices. The SPM-Main switch communicates with the cloud using an Ethernet or Wi-Fi connection. Thanks to this, it can control SPM-4Relay switches via the RS-485 interface. Thanks to this, stable data transmission over long distances is ensured. Don't worry about connection problems!
Energy consumption measurement Do you want to be able to control the energy consumption in every room in the office? Or maybe you want to control how much energy your tenants use? The Sonoff SPM-Main and SPM-4Relay switches allow you to do just that! The devices allow accurate measurement of energy consumption and convenient access to information is ensured by the eWeLink application. You no longer have to leave the house to check your energy consumption - just reach for your phone!
Overload protection You can also increase security in your server room or cryptocurrency mine with Sonoff switches. The product offers an overload protection function. Just activate it and the connected device will automatically turn off as soon as the current parameters reach the values indicated in the application.
4 channels per switch Each SPM-4Relay switch offers 4 independent channels with a maximum load of 20 A each. In addition, one SPM-Main can control up to 32 SPM-4Relay switches. This means that one main module can handle up to 128 channels! This is an ideal solution, for example, for an apartment building, where it will allow controlling the energy consumption of tenants of rented apartments. Connect the switches together and enjoy the results!
Technical parameters:
White color Input current: 100-240V ~50/60Hz 20A per channel, 80A max. Output current: 100-240V ~50/60Hz 20A per channel, 80A max. Material: PC V0 Dimensions: 250x90x66, 5mm
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