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Shelly Add On
Shelly Add On
Shelly Add On
Shelly Add On
Shelly Add On
Shelly Add On
Shelly Add On
Shelly Add On
Shelly Add On

Shelly Add On

Shelly Add On

$11.83

(66 reviews)

Shelly Plus Add-on is a galvanically isolated sensor interface for all Shelly Plus relays. Can be used with up to five DS18B20 (temperature) sensors or one DHT22 (temperature and humidity) sensor. Has an analog and a digital input. Compatible with most Arduino sensors. Compatible wit Shelly Plus 1/1PM, Shelly Plus 2PM, Shelly Plus i4/i4DC.

Shelly Plus Add-on is a galvanically isolated sensor interface for all Shelly Plus relays. Can be used with up to five DS18B20 (temperature) sensors or one DHT22 (temperature and humidity) sensor. Has an analog and a digital input. Compatible with most Arduino sensors. Compatible wit Shelly Plus 1/1PM, Shelly Plus 2PM, Shelly Plus i4/i4DC.

(66 reviews)

Shelly Plus Add-on is a galvanically isolated sensor interface for all Shelly Plus relays. Can be used with up to five DS18B20 (temperature) sensors or one DHT22 (temperature and humidity) sensor. Has an analog and a digital input. Compatible with most Arduino sensors. Compatible wit Shelly Plus 1/1PM, Shelly Plus 2PM, Shelly Plus i4/i4DC.

Shelly Plus Add-on is a galvanically isolated sensor interface for all Shelly Plus relays. Can be used with up to five DS18B20 (temperature) sensors or one DHT22 (temperature and humidity) sensor. Has an analog and a digital input. Compatible with most Arduino sensors. Compatible wit Shelly Plus 1/1PM, Shelly Plus 2PM, Shelly Plus i4/i4DC.

$11.83 - $137.49

in 23 offers

The lowest price for Shelly Add On right now is $11.83 at Digital Bay Tech, compared across 20 retailers.

The all-time low was $11.83 on 26 Aug 2026. That's the lowest price we've ever tracked — a great time to buy.

Prices last updated 26 Aug 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 26/08/2026 13:45:35

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$37.59

Shelly Plus Add-On, Smart Home Interface Plus Relay, Digital Control via WLAN & App, WiFi Home Automation, 3.3 V, Applicable to DS18B20 & DHT22

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=digitalbaytech.com&sz=64Digital Bay Tech

$11.83

Shelly Plus AddOn. For Shelly Plus devices, use DS18B20, DHT22 sensors, analog and digital input (Open Box)

Delivery $19.46

https://www.google.com/s2/favicons?domain=digitalbaytech.com&sz=64Digital Bay Tech

$23.64

Shelly Plus AddOn. For Shelly Plus devices, use DS18B20, DHT22 sensors, analog and digital input.

Delivery $19.46

https://www.google.com/s2/favicons?domain=smartify.pt&sz=64Smartify.pt

$21.43

Shelly Plus add-on module for state and temperature sensors

Delivery $64.95

https://www.google.com/s2/favicons?domain=ozsmartthings.com.au&sz=64Oz Smart Things

$23.99

Shelly Plus Add-On, Smart Home Automation Australia

Free delivery

https://www.google.com/s2/favicons?domain=smarthome.com.au&sz=64SmartHome

$24.00

Shelly Plus Add-On

Same-day delivery $10

https://www.google.com/s2/favicons?domain=ameridroid.com&sz=64Ameridroid

$24.00

Shelly Plus AddOn

https://www.google.com/s2/favicons?domain=ipandgo.com&sz=64IP&Go

$24.19

Shelly Plus Add-On

https://www.google.com/s2/favicons?domain=megateh.eu&sz=64Megateh

$24.28

Shelly Plus 1/1PM Add-on Expansion Module for various devices

Delivery between 31 Aug – 10 Sept $40.59

https://www.google.com/s2/favicons?domain=jw.com.au&sz=64JW Computers

$27.87

Shelly Add On

Delivery between Fri – Wed $10

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Power supply voltage ACNo
Power supply voltage DC3.3 V (from Shelly plus device)
VCC max. current10 mA
VREF OUT max. current1 mA
Temperature readingDS18B20 or DHT22 sensors

Price comparison

Updated about 20 hours ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$37.59

Shelly Plus Add-On, Smart Home Interface Plus Relay, Digital Control via WLAN & App, WiFi Home Automation, 3.3 V, Applicable to DS18B20 & DHT22

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=digitalbaytech.com&sz=64
Digital Bay Tech

$11.83

Shelly Plus AddOn. For Shelly Plus devices, use DS18B20, DHT22 sensors, analog and digital input (Open Box)

Delivery $19.46

https://www.google.com/s2/favicons?domain=digitalbaytech.com&sz=64
Digital Bay Tech

$23.64

Shelly Plus AddOn. For Shelly Plus devices, use DS18B20, DHT22 sensors, analog and digital input.

Delivery $19.46

https://www.google.com/s2/favicons?domain=smartify.pt&sz=64
Smartify.pt

$21.43

Shelly Plus add-on module for state and temperature sensors

Delivery $64.95

https://www.google.com/s2/favicons?domain=ozsmartthings.com.au&sz=64
Oz Smart Things

$23.99

Shelly Plus Add-On, Smart Home Automation Australia

Free delivery

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Power supply voltage ACNo
Power supply voltage DC3.3 V (from Shelly plus device)
VCC max. current10 mA
VREF OUT max. current1 mA
Temperature readingDS18B20 or DHT22 sensors