Shelly Plus Uni

The Shelly Plus Uni, based around an ESP32 module, brings smart functionality to your old appliances, suitable for low-voltage applications. It features two potential-free dry contacts that can switch 9-28VDC/8-24VAC and can monitor power usage in 2 ranges (0-15 VDC, 0-30VDC), as well as one analog input, two digital inputs and a 1-wire interface allowing you to work with various analogue and digital sensors.

With its new pulse counting feature, you’re not just automating – you’re getting insightful monitoring of your home’s usage. Designed for durability, its transparent cover offers full protection, ensuring both the device and your home appliances are always safe.

The Uni connects to your WiFi network without the need for a dedicated hub, and the onboard Bluetooth allows quick inclusion and also acts as a Bluetooth gateway. Shelly Plus Uni fully supports scripting, allowing you local control and custom functionalities.

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⚠️Caution – Read Before Buying⚠️

• Before beginning the installation, please read this guide and any other documents accompanying the device carefully and completely
• Danger of electrocution. The mounting/installation of the device should be performed by a qualified person (electrician)
• Failure to follow the installation procedures could lead to malfunction, danger to your health and life, violation of the law or refusal of legal and/or commercial guarantee (if any)
• Allterco Robotics (makers of Shelly products) and Mann Enterprises LTD are not responsible for any loss or damage in case of incorrect installation or improper operation of this device due to failure to follow the user and safety instructions in the printed guide accompanying this product (also available in the resources section below)
• Do not connect the device to appliances exceeding the given max load.
• Use the device only with a power grid and appliances which comply with all applicable regulations. Short circuit in the power grid or any appliance connected to the device may damage the device.
• Before starting, wire check that the breakers are turned off and there is no voltage on their terminals. This can be done with a phase meter or multimeter. When you are sure that there is no voltage, you can start wiring the cables.

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Features

• No hub required! Easy control through the Shelly Smart Control app, most platforms and protocols, as well as voice assistants. Use it with Alexa, Home Assistant, or your preferred automation platform
• Suitable for small appliances with low-voltage AC and DC applications (8-24 VAC, 9-28 VDC, and 5 VDC)
• Has two digital and 1 analogue inputs
• Supports 1-Wire sensors (single DHT22 & up to 5 DS18B20)
• Compatible with most Arduino sensors! Use its digital or analogue inputs to measure your desired parameters and create complex automation scenes based on the sensor data
• Receive precise data readings from your energy/gas/water meter (or any other meter that supports pulse count readings via external sensors)
• Wi-Fi Range Extender & BLE Gateway
• Extremely fast processor for immediate reaction – ESP32
• Supports scripting, webhooks, MQTT, WebSocket, HTTPS, UDP, TLS and custom certificates

Specifications

PCB size (LxWxH)	40x21x7 mm
Weight	8.5g (with the cables)
Ambient temperature	-20 °C to 40 °C
Humidity	30 % to 70 % RH
Power supply	8–24 VAC 9–28 VDC 5 VDC (stabilised, via +5 VDC and GND)
Power consumption	< 1 W
Digital input resistance	50 kΩ
Digital input triggering voltage	1.5 V (active low level)
Max switching voltage	30 V
Max switching current	300 mA
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
RF band	2400 – 2495 MHz
Max. RF power	<20 dBm
Wi-Fi protocol	802.11 b/g/n
Wi-Fi range	Up to 30m indoors and 50 m outdoors (Depends on local conditions)
Bluetooth protocol	4.2
Bluetooth range	Up to 10m indoors and 30m outdoors (Depends on local conditions)
CPU	ESP32-U4WDH
Flash	4 MB
Schedules	20
Webhooks (URL actions)	20 with 5 URLs per hook
Scripting	Yes
MQTT	Yes
CoAP	No

Resources

• Shelly Product Documentation
• Printed User Guide (as found within the package)
• Components and APIs
• Declaration of Conformity
• Device Identification
  • Device name: Shelly Plus Uni
  • Device model: SNSN-0043X
  • Device SSID: ShellyPlusUni-XXXXXX
• EAN: 3800235265710

Handy Shelly Resources

• Shelly Cloud
• Shelly App
  • Apple App Store
  • Google Play
  • Huawei AppGallery
• Home Assistant Shelly Integration
• Shelly Community Forum
• Shelly Facebook Support Group
• Shelly Knowledgebase
• Shelly Device Finder (easy-to-use software to find Shelly devices in the local network)
• Shelly Developer API

Package Contents

• 1x Shelly Plus Uni
• 1x Printed user guide