• Shelly 1 Gen4
  • Shelly 1 Gen4
  • Shelly 1 Gen4
  • Shelly 1 Gen4
  • Shelly 1 Gen4
1 9

Shelly

Shelly 1 Gen4. Smart relay switch, 1 channel 16A, dry contacts. Wi-Fi, Zigbee, Matter. (Open Box)

Shelly 1 Gen4. Smart relay switch, 1 channel 16A, dry contacts. Wi-Fi, Zigbee, Matter. (Open Box)

1 Gen4_OB_AN

Condition: Open Box

Professionally inspected and tested by Digital Bay Tech to ensure proper operation and cosmetic condition. Final sale. No returns or exchanges.
Open Box units may include manufacturer warranty when applicable and/or a Digital Bay Tech limited replacement warranty for manufacturing defects.
See warranty details below.

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$15.39 USD
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Professionally inspected and tested by Digital Bay Tech to ensure proper operation and cosmetic condition. Final sale. No returns or exchanges.
Open Box units may include manufacturer warranty when applicable and/or a Digital Bay Tech limited replacement warranty for manufacturing defects.
See warranty details below.
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A compact, high-performance smart relay switch with dry contacts, designed for professional and residential automation projects.
Shelly 1 Gen4 offers multiprotocol connectivity (Wi-Fi, Zigbee, Bluetooth, Matter), fast response times, and flexible voltage support, making it ideal for controlling lights, appliances, security systems, and low-voltage equipment.

WHY Shelly 1 Gen4

Smarter, Faster, and More Connected

Shelly 1 Gen4 brings powerful upgrades to the popular Shelly 1 platform. With multiprotocol connectivity, you can choose the protocol that best fits your project—Wi-Fi, Zigbee, or Matter—without changing hardware.

Its dry contact design allows safe control of both high- and low-voltage devices, while the improved processor ensures faster execution, smoother automations, and reliable operation in professional installations.

Perfect for retrofits, new builds, and integration with advanced automation systems.

Key Features – Shelly 1 Gen4

  • NEW – Multiprotocol connectivity
    Choose between Wi-Fi, Zigbee, Bluetooth, or Matter, allowing flexible integration without changing hardware.
  • NEW – Matter certified
    Native Matter support ensures long-term compatibility with modern smart home ecosystems.
  • NEW – Faster processor & improved performance
    Quicker response times and smoother automation execution compared to previous generations.
  • NEW – Apple Home & Siri support (via Matter)
    Control connected devices directly from the Apple Home app or using Siri.
  • 1-channel smart relay, up to 16A
    Suitable for controlling lights, outlets, and high-load appliances.
  • Dry contacts (potential-free)
    Ideal for safely switching low-voltage and high-voltage devices such as contactors, garage doors, and security systems.
  • Wide voltage support
    Works with both low and high voltage applications, increasing installation flexibility.
  • Perfect for retrofits
    Compact design fits behind standard wall switches and electrical boxes.
  • Local automation & scheduling
    Create schedules and actions that continue working even without internet access.
  • Advanced integration options
    Supports scripting, HTTPS, MQTT, WebSockets, APIs, and KNXnet/IP communication for professional installations.
  • Internal temperature sensor
    Built-in overheating protection for safer operation.
  • No hub required (Wi-Fi mode)
    Easy setup and control via the Shelly Smart Control app.
  • Broad platform compatibility
    Works with Alexa, Siri (Matter), Home Assistant, and professional systems such as Control4, URC, Crestron, Josh.ai, and more.
View full details

Gen4 devices

Experience next-level smart home automation with Shelly Gen4 novelties.
Each Gen4 device offers multi-protocol connectivity, featuring Wi-Fi, Bluetooth, Zigbee, and Matter.
Choose your connection and set up your Shelly device to work with your preferred smart home network in no time.

Common Use Cases

  • Smart Lighting Control

    Automate indoor and outdoor lights, schedule on/off times, or control them remotely from your phone or automation system. Ideal for retrofitting existing switches without changing the wiring.

  • Garage Doors & Gates

    Use the dry contact output to safely control garage doors, gates, or access systems, while keeping low-voltage circuits isolated from mains power.

  • Appliance Automation

    Turn appliances like heaters, coffee machines, pumps, or power outlets into smart devices with remote control, schedules, and automation rules.

  • Irrigation & Pumps

    Control irrigation valves, water pumps, or relays using schedules or automation triggers—perfect for smart gardens and outdoor setups.

  • Doorbells & Access Systems

    Trigger electric door strikes, doorbells, or intercom systems using dry contacts, integrating them into your smart home or professional automation setup.

  • Professional & Custom Integrations

    Ideal for integrators working with Control4, URC, Crestron, Josh.ai, KNX/IP, Home Assistant, and custom systems via MQTT, APIs, and scripting.

Functionalities

  • Multiprotocol connectivity

    Highly compatible! Choose the best protocol for your smart home—Zigbee, Wi-Fi, or Bluetooth

  • Dry contacts

    Use it to control a wide range of devices and appliances.

  • Smart schedules

    Set custom schedules based on your daily agenda, or follow the sunrise/sunset and control your lighting accordingly.

  • Low and high voltage support

    Use a wide range of output voltage levels. Supports low voltages.

  • Matter certified

    Integrates into any Matter ecosystem

  • Smart scenes

    Set custom scenes by combining Shelly 1 Gen4 with your other devices.

Frequently Asked Questions

What’s new in Shelly 1 Gen4 compared to previous versions?

Shelly 1 Gen4 adds multiprotocol support (Wi-Fi, Zigbee, Bluetooth, Matter), Matter certification, a faster processor, and improved performance while keeping the same compact, retrofit-friendly design.

Does Shelly 1 Gen4 require a hub?

No hub is required when using Wi-Fi.

For Zigbee or Matter, a compatible hub or controller is required, depending on your smart home ecosystem.

What does “dry contact” mean?

Dry contacts (potential-free) allow Shelly 1 Gen4 to switch circuits without supplying voltage. This makes it ideal for controlling low-voltage devices, contactors, garage doors, gates, and security systems safely.

Is Shelly 1 Gen4 compatible with professional automation systems?

Yes. Shelly 1 Gen4 integrates with Control4, URC, Crestron, Josh.ai, and other professional platforms using IP control, MQTT, HTTP APIs, and KNXnet/IP.

Can Shelly 1 Gen4 work even if the internet goes down?

Yes. Shelly 1 Gen4 supports local automation, schedules, and direct control on the local network, so critical automations continue working without internet access.

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed with Wi-Fi Protocol.(*)
Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.

(*) Platform app / Hub required when used with Zigbee / Matter

Shelly App
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed with Wi-Fi Protocol.(*)
Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.

(*) Platform app / Hub required when used with Zigbee / Matter

Shelly App
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms

Warranty

New Products

  • USA Pro Market Manufacturer Warranty: Lifetime manufacturer warranty (only if installed by a professional within USA) when purchased at Digital Bay Tech.

  • Retail Standard Manufacturer Warranty (included in purchase price): 2, 3 or 5 years manufacturer warranty covers only the hardware (corpus, mechanics, and display, if any) and does not cover consumables (battery) and accessories insofar as these are subject to exhaustion (decrease of their useful life) depending on the intensity of their use. Device malfunctions are only covered when device is used as described conditions within user manual (max loads, proper installation, etc.). Please check refund policy for further details.
  • Gen 1: 2 years.
  • Plus, Gen3, Gen4, Wave: 3 years.
  • Pro Line: 5 years.

Special Notes

  • Do It Yourself: Devices are technically user-installable in many locales, nevertheless consulting a licensed electrician to install shelly components is recommended; in addition to being licensed to work with electrical devices, they are also familiar with local building codes and regulations to keep your safety.
  • Manufacturer's Safety note: Each Shelly device generates heat under load. Do not combine two or more Shelly devices stacked on top of or beside each other in a confined space. There must be a minimum distance of 0.4 inch / 1 cm between them to allow for airflow.

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