£0.00
NetXL Logo
Hello! Log InYourAccount
  • Networking
  • Antennas
  • CCTV
  • Smart Home & Security
  • Speakers
  • VoIP
  • Accessories
  • Brands
  • Bundles
  • Reduced
Help & SupportExpress ShippingTrade Account
Explore
  • Brands A-Z
  • Categories
  • Reduced & Clearance
  • Bundles
Trade
  • Apply for Trade Account
  • Trade Account Benefits
  • API
More from NetXL
  • About Us
  • Blog
  • News
  • Careers
Terms
  • Terms & Conditions
  • Privacy Policy
Help & Support
  • Contact Us
  • FAQs
  • Delivery Policy
  • Returns
Apple Pay acceptedGoogle Pay accepted

Unit 4, Riverside Business Park, Walnut Tree Close, Guildford, Surrey, GU1 4UG

Registered in England & Wales. Company No: 13500507 VAT No: GB 386 0823 76

Copyright © 2025 NetXL Distribution Ltd, All rights reserved.

Want it by tomorrow? Order within 16 minutes for next business day delivery.

Home
Shelly
Shelly Sensor Interface for Shelly Plus Devices (Add-On)
shelly/shelly-plus-add-on-20

Click to zoom

shelly/shelly-plus-add-on-20
shelly/plus-add-on-13
shelly/shelly-plus-add-on-14

Shelly Sensor Interface for Shelly Plus Devices (Add-On)

Part Number: SHELLY-PLUS-1-ADD-ON

£15.40inc VAT
£12.83ex VAT

54 In Stock

Want it by tomorrow? Order within 16 minutes for next business day delivery.

Easy Returns

Bulk Pricing

  • 1+

    £15.40

  • 5+

    £15.40

  • 10+

    £15.40

The Shelly Plus Add-On is a sensor interface add-on, compatible with all Shelly Plus devices. Engineered to measure integrate temperature and humidity levels using its 1-Wire terminals, or connect analogue and digital sensors for complex automation based on rainfall or wind speed.

Description

The Shelly Plus Add-On is a galvanically isolated sensor interface compatible with all Shelly Plus devices. It serves to enhance the levels of customisation and automation behind your Shelly network even further by including support for both analogue and digital sensors, opening up the possibilities of advanced and sophisticated automations even further by providing opportunities for integrating light sensors, humidity monitors or wind speed, and relaying this information to your Shelly devices to adjust your smart home accordingly.

The Shelly Plus Add-On can enhance your automation anywhere from intelligent sprinkler systems that activate according to soil moisture levels, to motion-controlled lights for rooms that are only used occasionally - the possibilities are endless!

Key Highlights

  • Built-in WiFi - no hub required
  • Dry contact support
  • Measures humidity
  • Measures temperature
  • Smart schedules
  • Smart scenes

What’s in the box?

  • 1 x Installation Guide
  • 1 x SHELLY-PLUS-1-ADD-ON

Specification

Power Supply240V
ConnectivityWiFi
PurposeEnergy Monitoring
Product SeriesPlus

Documents

  • User Manual:Shelly Plus Add-On User Manual

You might also like

Save £11
shelly/shelly-h-t-ivory-20

Shelly H&T Heat/Humidity Sensor Ivory

£25.46inc VAT

More by Shelly

SHELLY-DIMMER-GEN4-1

Shelly Dimmer Gen4

RRP£38.30inc VAT
Save £4
SHELLY-MINI-1-GEN4-1

Shelly Mini 1 Gen4 8A Smart Relay

£15.32inc VAT
New
shelly/rgbw-pm-1

Shelly RGBW PM

RRP£29.32inc VAT
Save £1
SHELLY-PLUS-1-GEN3-1

Shelly Plus 1 Gen3 WiFi 16A Relay Switch

£12.73inc VAT
Save £4
SHELLY-1PM-GEN4-1

Shelly 1PM Gen4 16A Power Metering Relay

£17.92inc VAT
Save £25
shelly/shelly-pro-dimmer-2pm-20

Shelly Pro Dimmer 2PM Power Meter

£57.11inc VAT
Save £5
SHELLY-DIMMER-GEN3-1

Shelly Dimmer Gen3

£24.42inc VAT
Save £2
SHELLY-1-GEN4-1

Shelly 1 Gen4 WiFi 16A Smart Relay

£17.24inc VAT

Latest Tech News

Read Blog
How HPE Networking Instant On Enhances Guest Experiences Across Hospitality Environments
NetXL 8 Jul 2026 | 5 min readHow HPE Networking Instant On Enhances Guest Experiences Across Hospitality Environments

How HPE Networking Instant On Enhances Guest Experiences Across Hospitality Environments

DrayTek 2026 Product Update: WiFi 7, Multi-Gig Routers & Vigor Shield
NetXL 11 Jun 2026 | 5 min readDrayTek 2026 Product Update: WiFi 7, Multi-Gig Routers & Vigor Shield

From WiFi 7 access points to built-in network security, discover how DrayTek is evolving its business networking portfolio for faster, smarter and more resilient connectivity.

What is TP-Link Omada? The Business Network Solution Explained
NetXL 20 May 2026 | 5 min readWhat is TP-Link Omada? The Business Network Solution Explained

See how Omada simplifies business networking with seamless WiFi roaming, centralised cloud management and scalable SDN infrastructure.

DECT vs WiFi: Are Grandstream WP Series Phones Better for Mobile Business Communication?
NetXL 13 May 2026 | 5 min readDECT vs WiFi: Are Grandstream WP Series Phones Better for Mobile Business Communication?

Discover how Grandstream’s WP Series combines WiFi 6, VoIP and Android mobility features to deliver flexible business communication beyond traditional DECT systems.

Why do calls still drop on a fast internet connection?
NetXL 21 Apr 2026 | 5 min readWhy do calls still drop on a fast internet connection?

Exploring how TP-Link solutions improve call quality and network performance

Is the Grandstream GDS372x Series the Best IP Video Door Station for Modern Access Control?
NetXL 30 Mar 2026 | 5 min readIs the Grandstream GDS372x Series the Best IP Video Door Station for Modern Access Control?

Breaking down the Grandstream GDS372x Series, from features and access options to where it makes the most sense.

Why Should You Become A Certified Shelly Installer?
NetXL 30 Mar 2026 | 5 min readWhy Should You Become A Certified Shelly Installer?

Hands-on training, expert guidance, and perks that make your smart home projects stand out!

Why Does Your Router Matter More Than Internet Speed? | DrayTek Vigor 2767 Guide
NetXL 27 Mar 2026 | 5 min readWhy Does Your Router Matter More Than Internet Speed? | DrayTek Vigor 2767 Guide

A practical guide to improving network performance, security, and reliability with the DrayTek Vigor 2767 Series