Shelly PLUS Smoke Alarm

Product Introduction

The Shelly Plus Smoke Alarm is a smart photoelectric smoke detector designed to provide early fire detection and instant alerts within a connected smart home environment. The device continuously monitors the surrounding air for smoke and triggers both an audible alarm and mobile notifications if a potential fire is detected.

Using built-in Wi-Fi and Bluetooth connectivity, the alarm connects directly to your network without requiring a hub. When smoke is detected, the device activates a loud alarm and sends real-time alerts to the Shelly Smart Control app, allowing users to respond immediately even when away from home.

The alarm uses a photoelectric sensor, which is particularly effective at detecting slow-smouldering fires that can develop over long periods before flames appear. Its compact wireless design allows quick installation on ceilings or walls, making it suitable for bedrooms, hallways, kitchens, and living spaces.

Key Features

Photoelectric Smoke Detection
Advanced optical smoke sensor detects smouldering fires early for improved home safety.

Loud Audible Alarm and LED Alert
Produces a powerful >85 dB alarm and visual LED signals when smoke is detected.

Instant Mobile Notifications
Sends real-time alerts to your smartphone through the Shelly Smart Control app when smoke is detected.

Wi-Fi and Bluetooth Connectivity
Connects directly to a 2.4 GHz Wi-Fi network with Bluetooth support for quick setup.

Smart Scene Automation
Can trigger automation scenes such as turning on lights, unlocking doors, or shutting off power using other Shelly devices.

Wireless Battery Operation
Fully wireless design powered by a long-life battery for easy installation anywhere in the home.

Smart Home Integration

The Shelly Plus Smoke Alarm integrates with the Shelly ecosystem and a variety of smart home platforms.

Supported integrations include:

• Shelly Smart Control App
• Amazon Alexa
• Google Home
• Samsung SmartThings
• Home Assistant
• MQTT and REST API automation systems

Once connected, the device can trigger automation scenarios such as:

• Turning on emergency lighting during a fire alert
• Sending alerts to multiple family members
• Shutting down appliances or power circuits
• Activating security cameras or alarms

Technical Specifications

Product Type: Smart Smoke Alarm
Model: Shelly Plus Smoke
Sensor Type: Photoelectric smoke detector
Connectivity: Wi-Fi 2.4 GHz + Bluetooth 4.2
Alarm Volume: >85 dB
Power Supply: 1 × 3 V CR123A battery
Battery Life: Up to approximately 5 years
Wireless Range: Up to ~30 m indoors (depending on environment)
Operating Temperature: 0 °C to 55 °C
Humidity Range: 30% – 95% RH
Installation: Ceiling or wall mount
Dimensions: Approx. 86 × 31 mm

What’s in the Box

Shelly Plus Smoke Alarm
Mounting bracket
Battery
User manual