• Pack completo Shelly Plus Uni con carcasa, sondas de temperatura, humedad y nivel de líquido
  • Diagrama de conexión Shelly Plus Uni instalación IoT domótica 12-48V DC
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Shelly

Shelly Plus Uni — Universal WiFi Module with SSR, Analog Inputs, and 1-Wire Bus

Shelly Plus Uni — Universal WiFi Module with SSR, Analog Inputs, and 1-Wire Bus

€18,03
€18,03

Description

Shelly Plus Uni — Universal WiFi Module with SSR, Analog Inputs, and 1-Wire Bus

The Shelly Plus Uni (model SNUN-0024X) is a general-purpose universal WiFi module designed to integrate analog sensors, low-voltage devices, and 1-Wire buses into home automation installations. It features 2 SSR (solid-state relay) outputs for low-power loads, a 0–3.3V analog input, and support for DS18B20 temperature sensors via a 1-Wire bus. Gen2 generation with Bluetooth BLE 4.2. No hub or subscriptions required.

Technical Specifications:

  • Model: SNUN-0024X
  • Connectivity: WiFi 802.11 b/g/n (2.4 GHz) + Bluetooth BLE 4.2
  • Power Supply: 12 – 48V DC
  • Outputs: 2× SSR (solid-state relay)
  • Analog Input: 0 – 3.3V DC
  • 1-Wire Bus: Yes — compatible with DS18B20 sensors
  • Operating Temperature: -20 to +40°C
  • Certifications: CE, RoHS
  • Protocols: MQTT, HTTP REST API, WebSockets, Webhooks, Scripting (mJS)

Main Features:

  • 2 SSR outputs for controlling low-voltage DC loads
  • 0–3.3V analog input for pressure, humidity, light sensors, etc.
  • 1-Wire bus for multiple daisy-chained DS18B20 temperature sensors
  • Ideal for advanced IoT projects and light industrial automation
  • mJS scripting for custom logic without an external server
  • Flexible DC power supply from 12 to 48V

Use Cases:

  • Monitoring temperature in various rooms with DS18B20 sensors
  • Control of low-voltage valves and actuators in greenhouses
  • Integration of industrial analog sensors into home automation systems
  • Advanced DIY automation with Home Assistant and MQTT

Compatible with Home Assistant (local, no cloud), Amazon Alexa, Google Home, MQTT, HTTP REST API, and mJS scripting.

Connectivity

  • RF Band: 2400 – 2495 MHz
  • Max RF Power: <20 dBm
  • Wi-Fi Protocol: 802.11 b/g/n
  • Wi-Fi Range: Up to 30 m indoors / 50 m outdoors
  • Bluetooth Protocol: BLE 4.2
  • Bluetooth Range: Up to 10 m indoors / 30 m outdoors

Links of interest

Resources and documentation:

View full details

Shelly Plus Uni — Universal WiFi Module with Dual SSR and Analog Inputs

The Shelly Plus Uni (model SNUN-0024X) is a Gen2 universal smart module with WiFi and Bluetooth. It features two dry contact SSR outputs, a pulse counter, an analog input, and two digital inputs. Compatible with 1-Wire buses (DS18B20 sensor). Ideal for IoT integrations and advanced DIY home automation. No hub or subscriptions required.

Technical Specifications — Shelly Plus Uni

  • Model: SNUN-0024X
  • Connectivity: WiFi 802.11 b/g/n (2.4 GHz) + Bluetooth BLE 4.2
  • Power Supply: 12-48V DC
  • Outputs: 2× SSR (dry contact, potential-free)
  • Digital Inputs: 2 channels
  • Analog Input: 1 channel (0-10V)
  • Pulse Counter: Yes
  • 1-Wire Bus: Yes (compatible with DS18B20 sensors)
  • Operating Temperature: -40°C to +60°C
  • Protocols: MQTT, HTTP REST API, WebSockets, Webhooks, Scripting (mJS)
  • Certifications: CE, RoHS

Key Features

  • 2 dry contact SSR outputs for controlling low-voltage, potential-free loads
  • Integrated pulse counter for reading energy, gas, or water meters
  • 0-10V analog input for integrating pressure, temperature, and other sensors
  • 1-Wire bus for connecting DS18B20 temperature sensors
  • mJS scripting for advanced local automations without cloud dependency
  • Compact design compatible with electrical boxes and panels

Compatible with

  • Home Assistant (local, no cloud)
  • Amazon Alexa
  • Google Home
  • MQTT, HTTP REST API, mJS Scripting

Use Cases

  • Reading energy, gas, or water meters via pulse counter
  • Controlling low-voltage systems: locks, sirens, DC fans
  • Monitoring temperature with DS18B20 sensor via 1-Wire bus
  • Advanced DIY automations with custom analog and digital inputs

Official Shelly distributor. Shipped from Spain. Official Shelly warranty.

Shelly Plus Uni - Specifications

Type

Value

Physical

PCB size (LxWxH):

40x21x7mm/1.57x0.83x0.28in

Weight:

8.5 g / 0.3 oz (with cables)

Environmental

Ambient temperature:

-20°C to 40°C / -5°F to 105°F

Humidity

30% to 70% RH

Electrical

Power supply:

  • 8-24 VAC

  • 9-28 VDC

  • 5 VDC (stabilized, via +5 VDC and GND)

Power consumption:

< 1 W

Input circuit ratings

Digital input resistance:

50 kΩ

Digital inputs triggering voltage:

1.5 V (active low level)

Output circuit ratings

Max switching voltage:

30 V

Max switching current:

300 mA

Sensors, meters

Voltmeter:

0-15 VDC / 0-30 VDC (Two-range)

Voltmeter accuracy:

Pulse counter input triggering voltage:

1.5 V (active low level)

Pulse counter max frequency:

1 kHz

External sensors supported:

Single DHT22 or up to five DS18B20

Radio

RF band:

2400 - 2495 MHz

Max. RF power:

<20 dBm

Wi-Fi protocol:

802.11 b/g/n

Wi-Fi Range:

Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors
(Depends on local conditions)

Bluetooth Protocol:

4.2

Bluetooth Range:

Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors
(Depends on local conditions)

MCU

CPU:

ESP32

Flash:

4 MB

Firmware capabilities

Schedules:

20

Webhooks (URL actions):

20 with 5 URLs per hook

Scripting:

Forks

MQTT:

Forks

CoAP:

No