Shelly PLUS UNI Smart Wi-Fi Universal Module with Sensor Inputs
The Shelly PLUS UNI is a compact smart universal module that brings intelligent automation to low-voltage appliances and sensors. Featuring two solid-state relays with potential-free contacts, pulse counter, analog and digital inputs, and Wi-Fi and Bluetooth connectivity, this versatile module transforms ordinary devices into smart, remotely controllable systems. Perfect for home automation enthusiasts, DIY integrators, and professionals, the PLUS UNI works seamlessly with Home Assistant, Alexa, and other popular automation platforms—no hub required.
Key Features
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Two Potential-Free Relay Outputs: Switch low-voltage devices up to 30V and 300mA
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Multiple Input Types: Two digital inputs, one analog input, and 1-wire interface for versatile sensor compatibility
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Pulse Counting: Monitor utility meters (energy, gas, water) with pulse output for real-time usage tracking
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Wi-Fi & Bluetooth: Connect directly to your network without a hub; Bluetooth for quick setup and gateway functionality
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Wide Voltage Support: Works with 8-24 VAC, 9-28 VDC, and 5 VDC power sources
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Scripting Support: Advanced users can create custom local control and automation with scripting capabilities
Smart Automation Made Simple
Control the Shelly PLUS UNI remotely from anywhere via the Shelly Smart Control app, web interface, or your favourite home automation platform. Compatible with Alexa, Google Assistant, Home Assistant, MQTT, KNX, and other open protocols, this module integrates effortlessly into existing smart home ecosystems. Create complex automation scenes based on sensor data, trigger relays when conditions are met, or monitor your home's energy and water consumption in real time.
Sensor Compatibility & Monitoring
The PLUS UNI works with a wide range of Arduino-compatible sensors, including motion sensors (PIR), temperature/humidity sensors (DHT22, DS18B20), soil moisture sensors, and more. Use the analog input for voltage measurement in two ranges (0-15 VDC or 0-30 VDC) and digital inputs for triggering actions. The pulse counter enables precise monitoring of utility meters, helping you track usage and reduce monthly costs with data-driven automation.
Compact & Protected Design
With a tiny PCB footprint of just 40 × 21 × 7 mm and weighing only 8.5 grams, the Shelly PLUS UNI fits almost anywhere. Its transparent insulation cover protects the circuit from dust, humidity, and short circuits, ensuring reliable operation in various environments. Designed for ambient temperatures from -20°C to 40°C, this module is built for durability and long-term use.
What's in the Box
- Shelly PLUS UNI module with pre-attached cables
- Quick start guide
Full Specifications
| Model |
Shelly PLUS UNI |
| Dimensions (L × W × H) |
40 × 21 × 7 mm (PCB) |
| Weight |
8.5 g (with cables) |
| Power Supply |
8-24 VAC; 9-28 VDC; 5 VDC (stabilized) |
| Power Consumption |
< 1 W |
| Relay Outputs |
2 × solid-state, potential-free contacts |
| Max Switching Voltage |
30 V |
| Max Switching Current |
300 mA |
| Digital Inputs |
2 (50 kΩ resistance, 1.5 V triggering) |
| Analog Input |
1 (voltage measurement: 0-15 VDC / 0-30 VDC) |
| 1-Wire Interface |
Yes (supports DS18B20, DHT22 sensors) |
| Pulse Counter |
Yes (1.5 V triggering) |
| Connectivity |
Wi-Fi 802.11 b/g/n, Bluetooth |
| Wi-Fi Range |
Up to 50 m outdoors, 30 m indoors (typical) |
| Bluetooth Range |
Up to 30 m outdoors, 10 m indoors (typical) |
| Operating Temperature |
-20°C to 40°C |
| Humidity |
30% to 70% RH |
| Warranty |
3 years (Shelly Plus series) |
Specifications are sourced from the manufacturer product page and may be updated.
