

Hero image 0 of Shelly Plus AddOn, 0 of 5
Shelly Plus AddOn
Key item features
- Expanded Device Functionality: Attaches to Shelly Wave and Gen3/4 devices to add connectivity for digital/analog sensors and temperature/humidity sensor support
- Safe, Reliable Connections: Galvanically isolated sensor interface ensures secure operation and protects against possible sensor shortages
- Versatile Input and Output Options: Includes analog and digital inputs, reference voltage output, reference voltage via pull-up resistor output, and two ground terminals
- Wide Sensor Compatibility: Supports NTC resistors, PIR, soil moisture, capacitive liquid level, up to 5 DS18B20 sensors, a single DHT22 sensor, and most Arduino sensors
- Seamless Power and Connectivity: Powered directly by the attached Shelly device, operates via Wi-Fi, supports Bluetooth, and requires no smart hub
Specs
- BrandShelly
- CompatibilityShelly Plus Devices
- MaterialPlastic
- Compatible modelsShelly Plus Devices
- Works withAlexa & Google Home
- CompatibilityShelly
Current price is USDNow $13.93
You save $3.06
was $16.99$16.99
You save$3.06
Price when purchased online
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Arrives by Tue, Jun 30
|Sold and shipped by Shelly USA
3.3333333333333335 stars out of 5, based on 6 seller reviews(3.3)6 seller reviews
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About this item
Product details
Install the Shelly Plus Add-On module to expand the functionality of Shelly Plus and Shelly Gen3/4 devices. Constructed with a galvanically isolated sensor interface, this module does not have a direct electrical connection between the power side of the attached Shelly device and sensor. This means the signal integrity will be ensured when integrated and connected to sensors as well as provide protection if the sensor fails or shorts out, preventing damage to the attached Shelly device or wiring in your home. The Plus Add-On module is built with an analog input, a digital input, one reference voltage input, one reference voltage through a pull-up resistor output, and two ground terminals. You can use it to measure temperature and humidity and automate actions based on connected sensors (analog or digital). The Shelly Plus Add-On module receives power directly from the attached Shelly device and supports multiple Shelly Plus modules such as the 1 Gen3, 1PM Gen3, 2PM Gen3, Shutter, i4 Gen3, DALI Dimmer Gen3, Dimmer 0/1-10V PM Gen3, EM Gen3, 1 Gen4, 1pm Gen4, and the 2PM Gen4. Enjoy enhanced home automation control and precise monitoring of your Shelly devices no matter where you are with the Shelly Smart Control app. The app connects to Shelly's cloud service to help you control your connected devices remotely and send notifications for all automated events in your home directly to your smart device. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your home automation. The Shelly Smart Control App supports real-time power metering with power management (PM) devices, smart plugs, and smart bulbs in order to allow you to build complex automation solutions for improved energy efficiency and lower electricity bills. NOTE: Requires connection to a Wi-Fi network. Size (HxWxD): 1.46x1.65x0.59 inches (37x42x15 mm). Manufacturer Part #: Plus Add-On.
- Expanded Device Functionality: Attaches to Shelly Wave and Gen3/4 devices to add connectivity for digital/analog sensors and temperature/humidity sensor support
- Safe, Reliable Connections: Galvanically isolated sensor interface ensures secure operation and protects against possible sensor shortages
- Versatile Input and Output Options: Includes analog and digital inputs, reference voltage output, reference voltage via pull-up resistor output, and two ground terminals
- Wide Sensor Compatibility: Supports NTC resistors, PIR, soil moisture, capacitive liquid level, up to 5 DS18B20 sensors, a single DHT22 sensor, and most Arduino sensors
- Seamless Power and Connectivity: Powered directly by the attached Shelly device, operates via Wi-Fi, supports Bluetooth, and requires no smart hub
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Specifications
Brand
Shelly
Compatibility
Shelly Plus Devices
Material
Plastic
Compatible models
Shelly Plus Devices
Warranty
Warranty information
No
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Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Customer ratings & reviews
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Showing 1-3 of 5 reviews
Nov 23, 2025
A.J.
5 out of 5 stars review
Good Add On
Worked great to add on temperature sensors to create a water circulation controller. Setup was very easy to configure. I wish it had a better locking mechanism to the shelly relay as the latch can get dislodged in a tight junction box. Would recommend for someone looking to add on capabilities with a turnkey device.
Review from shelly.com
Helpful?7CSINZ2PSPGJ5282940467
Aug 11, 2025
P.P.
5 out of 5 stars review
Such a simple add-on. Clip on and go.
Simple to add a DS style 1wire temperature device. Setup was straightforward. Reports as {temperature:100}.
Review from shelly.com
Helpful?7CSINZ2PSPGJ5282940467
Aug 13, 2025
G.Z.
5 out of 5 stars review
Seems exactly what I was looking for
Seems exactly what I was looking for. I just needed to add a bunch of data and sensors to my smoker
Review from shelly.com
Helpful?7CSINZ2PSPGJ5282940467










