---
product_id: 520655680
title: "Plus Add-On - Add-On for Shelly Plus, Gen3 & Gen4 Devices, Temperature and Humidity Sensor, Home Automation, DS18B20, DHT22 & Arduino Sensors, Analog and Digital Input, No Hub Required"
brand: "shelly"
price: "318 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/520655680-plus-add-on-add-on-for-shelly-plus-gen3-gen4
store_origin: DK
region: Denmark
---

# Ultra low 10mA power draw Compact 37x42x37 mm size Up to 5 DS18B20 sensors Plus Add-On - Add-On for Shelly Plus, Gen3 & Gen4 Devices, Temperature and Humidity Sensor, Home Automation, DS18B20, DHT22 & Arduino Sensors, Analog and Digital Input, No Hub Required

**Brand:** shelly
**Price:** 318 kr
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your smart home game with precision sensing and effortless automation!

## Quick Answers

- **What is this?** Plus Add-On - Add-On for Shelly Plus, Gen3 & Gen4 Devices, Temperature and Humidity Sensor, Home Automation, DS18B20, DHT22 & Arduino Sensors, Analog and Digital Input, No Hub Required by shelly
- **How much does it cost?** 318 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/520655680-plus-add-on-add-on-for-shelly-plus-gen3-gen4)

## Best For

- shelly enthusiasts

## Why This Product

- Trusted shelly brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy-Efficient & Secure:** Runs on minimal 3.3V power with enhanced security features to protect your smart home ecosystem.
- • **Plug & Play Compact Design:** Effortlessly mounts alongside Shelly Plus Gen3/4 devices inside standard electrical boxes—no hub needed.
- • **Dual Analog & Digital Inputs:** Seamlessly integrate diverse sensors like PIR, soil moisture, and photoresistors for smart automation.
- • **Custom Scheduling & Smart Scenes:** Automate your home with personalized timers and scene creation for ultimate convenience and control.
- • **Precision Multi-Sensor Integration:** Connect up to five DS18B20 or one DHT22 sensor for granular temperature & humidity insights.

## Overview

The Shelly Plus Add-On is a compact, energy-efficient sensor module designed to expand your Shelly Plus Gen3 or Gen4 device capabilities. It supports up to five DS18B20 temperature sensors or one DHT22 humidity sensor via 1-Wire, plus analog and digital inputs for versatile sensor integration. With easy installation, no hub required, and advanced scheduling features, it empowers professional-grade home automation and real-time environmental monitoring with robust security.

## Description

Free delivery and returns on all eligible orders. Shop Shelly Plus Add-On - Add-On for Shelly Plus, Gen3 & Gen4 Devices, Temperature and Humidity Sensor, Home Automation, DS18B20, DHT22 & Arduino Sensors, Analog and Digital Input, No Hub Required.

## Features

- 𝗩𝗲𝗿𝘀𝗮𝘁𝗶𝗹𝗲 𝗦𝗲𝗻𝘀𝗼𝗿 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Connects up to five DS18B20 temperature sensors or one DHT22 sensor via 1-Wire terminals, enabling precise temperature and humidity monitoring for various applications
- 𝗔𝗻𝗮𝗹𝗼𝗴 & 𝗗𝗶𝗴𝗶𝘁𝗮𝗹 𝗜𝗻𝗽𝘂𝘁𝘀: Features both analog and digital inputs, allowing integration with a wide range of sensors such as photoresistors, PIR motion detectors, soil moisture sensors, and more for comprehensive automation scenarios
- 𝗖𝗼𝗺𝗽𝗮𝗰𝘁 & 𝗘𝗮𝘀𝘆 𝗜𝗻𝘀𝘁𝗮𝗹𝗹𝗮𝘁𝗶𝗼𝗻: Operates on 3.3 V DC supplied by the connected Shelly Plus Gen3 or Gen4 device and mounts easily alongside it inside standard electrical boxes
- 𝗦𝗰𝗵𝗲𝗱𝘂𝗹𝗶𝗻𝗴 & 𝗧𝗶𝗺𝗲𝗿𝘀: Set up timers and personalized schedules per channel or create scenes for full-home automation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BRBMKB53 |
| Best Sellers Rank | 84,046 in DIY & Tools ( See Top 100 in DIY & Tools ) 8,448 in Electrical |
| Brand | Shelly |
| Current Rating | 10 Milliamps |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,578) |
| EU Spare Part Availability Duration | 3 Years |
| Global Trade Identification Number | 03800235266427 |
| Included Components | 1x Shelly Plus Add-ON |
| Item Dimensions | 37 x 42 x 37 millimetres |
| Item Weight | 13 Grams |
| Manufacturer | Shelly Europe |
| Manufacturer Part Number | Plus Add-on |
| Material | Plastic |
| Maximum Supply Voltage | 3.3 Volts (DC) |
| Measurement Accuracy | ±0.5°C |
| Measuring Range | Abhängig von den Sensoren DS18B20 oder DHT22 |
| Model Number | 3800235266427 |
| Mounting Type | Flush Mount |
| Number of Items | 1 |
| Output Type | Analogue, digital |
| Product Warranty | 2 Year Manufacturer Guarantee |
| Specific Uses For Product | Temperature and humidity sensing, home automation control, irrigation automation |
| Style Name | Pack of 1 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 125 Degrees Celsius |

## Product Details

- **Brand:** Shelly
- **Item dimensions L x W x H:** 37 x 42 x 37 millimetres
- **Item weight:** 13 Grams
- **Material:** Plastic
- **Style:** Pack of 1

## Images

![Plus Add-On - Add-On for Shelly Plus, Gen3 & Gen4 Devices, Temperature and Humidity Sensor, Home Automation, DS18B20, DHT22 & Arduino Sensors, Analog and Digital Input, No Hub Required - Image 1](https://m.media-amazon.com/images/I/81WwVQX0FrL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Shelly Plus Add-On | Wi-Fi & Bluetooth Add-On for Shelly Plus Devices | Measure Temperature and Humidity | Home Automation | Works with Alexa & Google Home | iOS Android App |No Hub | Digital Sensor
- Shelly Plus 1 UL | WiFi Smart Relay Switch with Dry Contacts | Home Automation | Bluetooth Gateway | Alexa, SmartThings & Google Home Compatible | No Hub | DIY Remote Control | Garage Door Opener

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**Shop now:** [https://www.desertcart.dk/products/520655680-plus-add-on-add-on-for-shelly-plus-gen3-gen4](https://www.desertcart.dk/products/520655680-plus-add-on-add-on-for-shelly-plus-gen3-gen4)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-09-06*