Shelly Plus Add-On Wlan Smart Relay

Unlock Advanced Automation with the Shelly Plus Add-On Sensor Interface

Elevate your smart home capabilities with the Shelly Plus Add-On, the ultimate sensor interface designed to work seamlessly with your existing Shelly Plus devices. This powerful accessory transforms your standard Shelly Plus 1, Plus 1PM, Plus 2PM, and Plus i4 relays into sophisticated, data-gathering hubs, enabling complex and highly precise automation scenes based on real-world environmental data. Move beyond simple on/off commands and unlock a new level of intelligent control for your home or office. Perfect for DIY enthusiasts and smart home experts, the Shelly Plus Add-On is the key to creating a truly responsive and automated environment.

Hyper-Personalized Automation and Monitoring

Imagine your home reacting intelligently to its environment. With the Shelly Plus Add-On, this becomes a reality. By connecting a wide range of analog and digital sensors, you can create automation routines that were previously impossible. Automatically activate a fan when a room´s humidity exceeds a certain level, trigger your heating when the temperature drops, or get an instant notification on your phone if a door or window is opened. This galvanically isolated interface allows you to monitor everything from soil moisture in your garden to the temperature of your aquarium, giving you unprecedented control and peace of mind. Enhance your energy efficiency by making informed decisions based on real-time data, ensuring your systems only run when they are truly needed.

Key Features:

* Versatile Sensor Compatibility: Designed as a universal sensor interface, it can be connected to a wide variety of analog and digital sensors for comprehensive monitoring.
* Multiple Temperature Sensing: Connect up to five DS18B20 temperature sensors simultaneously to accurately measure and monitor thermal conditions across multiple points.
* Precise Temperature & Humidity Monitoring: Features a dedicated input for a DHT22 sensor, allowing you to capture both temperature and humidity data for advanced climate control automation.
* Analog Input Support: Use the analog input to connect sensors like potentiometers, photocells (LDR) for light measurement, or soil moisture sensors to automate irrigation.
* Digital Input Support: Connect digital sensors such as reed switches for door/window status, water leak detectors for security, or any sensor with a binary on/off output.
* Seamless Integration: Purpose-built to attach to Shelly Plus series devices, ensuring a stable connection and reliable performance within your Shelly ecosystem.
* Create Complex Scenes: Leverage the incoming sensor data within the Shelly Cloud app to build powerful, multi-conditional scenes and automation routines without needing an external hub.

Explore the Full Shelly Smart Lighting Ecosystem

While the Shelly Plus Add-On enhances your relays with sensor data, Shelly offers a wide range of dedicated solutions for every part of your home, including brilliant smart lighting.

The Shelly RGBW2 is a Wi‑Fi LED controller that turns traditional LED strips and lighting into a fully smart system.

Compatible with 12 V and 24 V LED strips in white, RGB or RGBW formats, and supporting up to 288 W total power, this module installs behind your switch, socket or light box for seamless integration.

It offers dimming, colour effects, sunrise/sunset scheduling, full mobile control and compatibility with voice assistants and smart platforms.
- all without requiring a hub.

With built‑in power measurement and a compact design, the RGBW2 brings vivid lighting experiences and smart control to any space.

Whether you´re looking to automate your greenhouse based on light and moisture, monitor your server room´s temperature, or create advanced security and climate control scenes in your home, the Shelly Plus Add-On provides the essential link between the physical world and your smart home network. Upgrade your Shelly Plus devices today and unlock a new dimension of smart home automation and intelligent control