Shelly 2.5 2-channel intelligent...
Shelly 2.5 2-channel intelligent...
Shelly 2.5 2-channel intelligent...

Shelly 2.5 2-channel intelligent relay, consumption measurement, blinds control mode, WIFI

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Shelly 2.5 is one of the world’s smallest 2-channel WiFi-equipped smart relay switch, with power meter feature. Thanks to its small size, it fits into the wall under the power socket or a standard light switch. It is also a perfect choice to control roller shutters, motorized window openers and shades.


Shelly 2.5 (later version of Shelly 1) is one of the smallest, open source, WiFi-equipped device to smart control circuits with built-in power meter. This version manages 2 channels and features roller shutter control. Due to its small size you can built it in behind a power socket / standard light switch or into an electrical cabinet even when the cabinet is heavy-packed.

Completely re-engineered: 20% more powerful, 30% smaller, 50% increased range, 100% protected, dual power metering!

  • Wireless: No HUB required – Connect Shelly 2.5 directly to your Wi-Fi at home.
  • Control remotely: Control the lighting at home, no matter where you are.
  • Highly compatible: Compatible with Android, iOS, Amazon Alexa and Google Assistant. Control your appliances with your voice.
  • Wide range of voltage support: Shelly 2.5 can be used to control a wide range of devices and appliances.
  • Sunrise/Sunset schedules: Automatically follow the sun and turn Shelly 2.5 on/off based on sunrise and sunset hours.
  • Weekly schedules: Create custom daily schedules for your devices.
  • Overheating protection: Internal temperature sensor for overheating protection.
  • Dual power metering: Two integrated precise power meters that allow you to measure the consumption for each channel separately.

Smaller but more powerful. Shelly 2.5 have a maximum load of 2x2300W or 2x10A. Independent dual power metering for each channel allowing you to monitor the status and history, as well as the current and past electrical power consumption.

Control any 110-230V roller shutter, motorized curtains or awning. With Shelly 2.5 you can open and close your garage door with a single tap, or even with your voice. Controlling roller shutters, garage doors, barriers, or any bi-directional motor has never been easier.

Use with any appliance: Shelly 2.5 supports a wide range of AC and DC power supply and you can control a wide range of devices and appliances.

Smaller than 2 cookies stacked together it can fit anywhere, under the existing wall console even if there are a lot of cables. It's 30% smaller than Shelly 1PM and 5% smaller than Shelly 1.

Easy to install: No more wiring issues. You can revert AC or externally switch poles whenever you need. Install the Shelly 2.5 relays in your existing electric circuits, for 3 minutes each, and make your home smart and more energy efficient.

Overheating and overconsumption protection: Internal temperature sensor for overheating protection. Shelly 2.5 has an integrated precise power meter. You can measure the overall consumption of all the electric devices you are controlling.

Control 2 independent circuits with 1 device: You are ready for bed, but start thinking if you have switched off the lights downstairs? Avoid this and control 2 independent circuits with one device. Simply install Shelly 2.5 and control the lighting of 2 separate lamps. They might be in the same or different rooms.

Shelly 2.5 extremely small sized only 39 x 36 x 17mm. 30 percent smaller than former version Shelly 2, and 5 percent smaller, than Shelly 1.

Building Shelly 1 behind them you can control lights by keeping your existant switches and monitor their status (turned ON / OFF).

Supports roller shutter (motor driven roller shutter) control: one circuit controls rolling up, the other one controls rolling down.

Timer function:

  • set schedules of turning ON / OFF to any weekdays
  • supports schedules adjusted to dawn/dusk

Mongoose OS-based, free Cloud service and smartphone app of the manufacturer is also available to Shelly 2.5

Built-in web-server, configurable from web-interface via local network. LAN-compatible, controllable via local network without Shelly Cloud and Internet access. Supports MQTT.

Compatible with Google Home and Amazon Echo voice control.

The device operates with a ESP8266 based control, firmware can be modified as you want through the built-in pin-bus (Sonoff-Tasmota, ESPEasy, ESPurna e.g.), can be integrated easily with own automatization server.

Like other smart switches this device has to be connected to phase wire and neutral wire too.

Power supply: 110-230V, 50/60Hz AC, 24 – 60V DC

Peak output: 10A per channel

One application, countless possibilities: With the best cloud service in the world, user-friendly interface, scenes, bulk control, and much more, the Shelly Cloud application allows you to control your home from anywhere. Each Shelly can be integrated and works with all other Shelly devices in the Shelly App.

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