Tuya Smart Zigbee and RF433 4-Channel 10A Dry Contact Relay Module - Alexa and Google

Enhance your home automation system with the 4-Channel Smart Zigbee Relay Module with dry contact, compatible with

Tuya Smart App, Smart Life and RF433 MHz control. Thanks to Zigbee technology, it is perfect for those who want network stability,

low consumption and advanced automations , even in the absence of Wi-Fi. Each channel supports up to 10A of load , making it ideal

for both civil and industrial applications: lights , gates , intercoms, boilers , pumps, curtains or shutters. The configuration is simple

and fast, and the integration with Alexa and Google Home voice assistants allows for convenient and intelligent management.

4 independent clean contact outputs (NO/NC)

The module is equipped with 4 completely independent relay channels, each with a clean contact configurable as Normally Open.

Open ( NO ) or Normally Closed (NC ) . This architecture allows integration with devices without power supply

directly on the entrance, such as intercoms , boilers , alarm control panels, buttons, gates and many other industrial or domestic devices.

Each channel supports up to 10A

Each button/relay is designed to support a maximum load of 10A (approximately 2200–2400W), making the module

also suitable for high-power devices such as pumps, stoves , industrial fans or powerful LED lighting .

A truly professional solution even for intensive loads.

Zigbee + RF433 MHz Connectivity – Reliable Even Offline

The module connects via Zigbee 3.0 network , ensuring low latency, energy efficiency and stable connection even

in crowded environments with devices. To connect to the Tuya or Smart Life App, a compatible Tuya Hub is required.

Enables control via compatible RF remotes (not included) for local, cloud-independent operation.

Compatible with Alexa, Google Home and voice assistants

The module fully supports voice commands via Amazon Alexa and Google Assistant . You can turn on or

turn off any channel with a simple voice command, or include the module in custom routines ,

for example to turn on outside lights , open a gate , or turn off a water pump .

Available in two power versions:

DC/AC 7–32V : Suitable for low voltage systems, automation systems, access control and vehicles.

AC 85–250V : ideal for civil and industrial systems powered by standard 220V.

Both versions also support alternative power supply via USB Type-C 5V port (standard 5V/1A or higher),

They offer the same range of smart features and are interchangeable based on your electrical system.

Integration with existing systems – 100% retrofit

Thanks to the clean contact, the module is perfect for transforming existing electrical systems into smart ones , without having to

change the power supply of the controlled devices. Just connect the NO/NC/COM terminals and you're done.

Family and multi-user sharing

The module can be shared with multiple users via Smart Life app , enabling collaborative management

of lights, motors and smart devices at home or in the professional field.

Customizable relay state on reboot

From the app you can choose whether each channel , when power is restored, should turn back on, off or remain on.

the last state. An indispensable feature in the event of a blackout or network reset.

Timers, Automations and Inching Mode for each channel

Each relay can be programmed to:

• Manual or scheduled on/off
• Momentary ignition ( inching ) from 1 to 3600 seconds
• Cyclic power on, e.g. every 30 minutes for 10 seconds
• Conditional activation based on other Tuya devices (e.g. presence, temperature, humidity)

This flexibility allows you to customize each channel to suit different needs.

Advanced Features:

• Individual control for each channel
• Smart scenes and automations with other Tuya devices (e.g. lights, sensors, cameras)
• Relay status memory after blackout (on/off/last status)
• Remote status monitoring
• Bluetooth compatibility (fastest pairing via app)
• Clean NO/COM/NC contact for each channel, without direct power supply on the output

Recommended Applications:

• Automation of electric gates, locks, garage doors
• Control of intercoms, bells, boilers, pumps, irrigation
• Integration with existing dry contact home automation systems
• Control of lights, fans, HVAC systems, shutters, blinds
• Ideal for home automation, hotels, B&Bs, industrial plants, technical panels