Verified compatibility
We test every device for these ecosystems. For non-standard integrations contact us before ordering.
- Home Assistant
- Zigbee
- Matter
- KNX
- Wi-Fi
Compatibility
Works with these ecosystems
Protocols
- Wi-Fi
- BLE
Ecosystems
- Home Assistant
- Google Home
- Amazon Alexa
What it is, who it's for, what it does
About this product
Shelly Plus Uni is a compact universal module for DIY automation that turns almost any low-voltage device into something you can control over Wi-Fi and Bluetooth. The 40x21x7 mm board fits inside a junction box, an appliance enclosure or a panel and runs on 8-24 V AC, 9-28 V DC or 5 V regulated supply.<br><br>The module carries two solid-state outputs with potential-free dry contacts (up to 30 V / 300 mA), two digital inputs, one analog input measuring 0-30 V DC and a pulse counter up to 1 kHz. The 1-Wire bus accepts a DHT22 sensor or up to five DS18B20 temperature sensors, so climate data is collected from a single device.<br><br>Control runs through the Shelly app, a local web interface, MQTT and custom scripts. Wi-Fi 802.11 b/g/n and Bluetooth 4.2 support give direct integration with Home Assistant, Google Home and Amazon Alexa without cloud dependency.
- DeliveryFree from 1500 MDL
- Returns30 days to return
- Warranty24 months
15+projects delivered300+devices installed3 yearslocal-first experienceChișinăushowroom Columna 153Book a showroom visit →
CasaSmart essentials
What it works with, what it needs, what you can do
Install & requirements
What you need on your side and what we deliver.
- Zigbee hub or Matter gateway for wireless variants
- 65 mm back-box or DIN panel for wired variants
- Local setup on Home Assistant — included in install
Smart scenarios
Three typical automations we set up after the install.
- 01Morning: warm light + blinds up + climate at 22 °C
- 02Leaving: lights off, arm sensors, close the gas
- 03Evening: warm ambient + cinema scene
Where it works
Use cases
A house on the outskirts of Chisinau: the owner opens the driveway gate from a phone without leaving the car.
The output dry contact simulates a button and triggers the sliding or swing gate motor from the Shelly app.
A villa boiler room: one Shelly Plus Uni tracks flow, return and hot-water tank temperatures.
Up to five DS18B20 sensors connect to the 1-Wire bus to monitor temperature from a single module.
An apartment in Chisinau: the building door opens from the app without replacing the old intercom.
Digital inputs read the panel call while the dry contact pulse-opens an electromechanical lock.
Analytics
See consumption — save on bills
Real-time consumption tracking via the eWeLink app. Daily, weekly and monthly history helps identify the most energy-hungry devices.
For the installerTechnical specificationsfull spec · wiring · datasheet
For the installer
Technical specifications
full spec · wiring · datasheet
Power
- Power supply (AC)
- 8-24 VAC
- Power supply (DC)
- 9-28 VDC
- Power consumption
- < 1 W
- Outputs (solid-state, dry contact)
- 2
- Max switching voltage
- 30 V
- Max switching current
- 300 mA
Connectivity
- Digital inputs
- 2
- Analog input range
- 0-30 VDC
- Pulse counter max frequency
- 1 kHz
- Supported sensors
- 1x DHT22 or up to 5x DS18B20
Wireless
- Wi-Fi
- 802.11 b/g/n 2.4 GHz
- Bluetooth
- 4.2
Other
- CPU
- ESP32-U4WDH
- Flash memory
- 4 MB
Physical
- Dimensions (PCB)
- 40x21x7 mm
- Weight
- 8.5 g
Environment
- Operating temperature
- -20 to 40 °C
- Operating humidity
- 30 to 70 % RH
Support
Frequently asked questions
Can the Shelly Plus Uni switch 230 V directly?
No. The outputs are solid-state dry contacts rated for 30 V and 300 mA. To switch 230 V, wire them through an external relay or contactor.How many temperature sensors does the module support?
Over the 1-Wire bus, the Shelly Plus Uni supports one DHT22 humidity and temperature sensor or up to five DS18B20 temperature sensors.What voltage powers the Shelly Plus Uni?
The module runs on 8-24 V AC, 9-28 V DC or 5 V regulated supply, with consumption below 1 W.Does the module work without the cloud?
Yes. It can be controlled locally through the web interface at its IP address, via MQTT and with scripts, and integrates directly with Home Assistant.Which smart-home ecosystems are supported?
The Shelly Plus Uni integrates with Home Assistant, Google Home and Amazon Alexa. It does not support Apple HomeKit because it has no Matter.What are the board dimensions and where is it mounted?
The board measures 40x21x7 mm and weighs 8.5 g, so it fits inside a junction box, an appliance enclosure or an automation panel.
Same ecosystem
Works together
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Manager guidance
Questions about this product?
A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.
+373 60 944 922Updated: · reviewed by CasaSmart Expert Team