Expert4House – Smart Home Automation
Tuya Smart WiFi Switch Module AC 240V or DC 5–48V Clean Contact Flush Mount
€10.89
€12.89
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- Tuya WiFi Relay Module with Clean Contact for Recessed Installation: Ideal for controlling signals (e.g., electric locks, gates, intercoms, command relays) as well as lights and other compatible loads.
- 1 Channel (1CH) or 2 Channels (2CH) Versions: Choose the right model to manage 1 or 2 circuits with a single module.
- Super Flexible Power Supply: Works with both AC 100–240V (50/60Hz) and low voltage DC 5V / DC 12–48V, perfect for home automation and automations.
- Clean Contact Outputs (NO/NC/COM): 1CH with COM / NO / NC terminals - 2CH with COM + NO1 + NO2 (dual output)
- Range and 2.4GHz Wi-Fi Standard: IEEE 802.11 b/g/n protocol with frequency 2.412–2.484GHz (2.4G network required).
- Control via Smart Life or Tuya Smart App: Turn on/off from smartphone, manage devices and automations even when away from home.
- Compatible with Alexa and Google Assistant: For voice control (instant smart home).
- Timers and Schedules: Create schedules and hourly automations directly from the app to reduce waste and increase comfort.
- State Memory and Command Synchronization: The last command (app or switch) remains in memory and the app is synchronized with the manual switch.
- Works with Traditional Switch: You can maintain physical control for ON/OFF.
- If Wi-Fi Goes Down, Continue Local Control with the Switch: When the network becomes available again, the module reconnects automatically.
- Maximum Load: 1 Channel: LED 150W 5A - 2 Channels: LED 2×150W 2×5A
- Mini Format for Recessed Boxes: Dimensions 39.2 × 39.2 × 18 mm, ideal for installations behind sockets/switches.
- Useful Specifications for Installations: IP20, operating temperature -10°C ~ +40°C, 2-year warranty.
- Easy Pairing: Supports Wi-Fi pairing and reset/association with button or on/off sequence.
Secure payments: cards, PayPal, bank transfer, and installments
Delivery within 48 hours: Free shipping on orders over €150 across Europe
Easy 14-day returns: follow the steps to get your refund
Professional Smart WiFi Control with AC/DC Clean Contact
The Tuya Flush-Mounted Dry Contact Smart WiFi Switch Module is a compact, professional solution designed to offer maximum power flexibility and intelligent control in a single device. It supports both AC 100–240V and DC 5–48V , making it ideal for a wide range of home and professional applications, from lighting to access systems, to low-voltage devices. Thanks to the dry contact (NO/NC) , the module does not provide output voltage but acts as a safe control relay , perfect for automatic gates, electric locks, intercoms, control relays, light industrial automation, and smart home systems. It is available in a 1-channel or 2-channel version , allowing you to control one or two circuits independently. The device offers three advanced operating modes , configurable directly from the app: Self-locking Mode , to turn the load on and off in the traditional way, Interlocking Mode , ideal for managing two loads alternately, Inching Mode (impulse) , perfect for timed openings such as automatic gates or doors. Integration with the Tuya Smart / Smart Life ecosystem allows remote control from your smartphone , the creation of timers, countdowns and automations , as well as the memory function of the last state , which maintains the desired behavior even after a blackout. The module is also compatible with Amazon Alexa and Google Assistant for simple and immediate voice control. The miniaturized design allows for discreet flush-mounted installation behind switches or in junction boxes , keeping the system clean and professional, without invasive modifications. Compatible with traditional push-button or rocker switches , it combines the convenience of manual control with the potential of modern home automation. A single smart module for AC and DC power, advanced automation and total control , designed for those seeking reliability, versatility and complete integration into the smart home.
Remote Control via Smart Life App or Tuya
Relay Status Memory: Intelligent restart after blackout
With the Relay Status function , you decide how the relay should behave when the power returns: you can set it to ON , OFF , or restore the last state (very useful for avoiding unwanted switching on/off after a power outage). Furthermore, the app command and the switch command synchronize : the last change made is saved in memory, so the module always maintains the behavior you have chosen.
Convenient Voice Control with Alexa and Google Assistant
Hands full? No problem: once you've connected the module to the Tuya Smart / Smart Life app , you can also control it with your voice via Amazon Alexa and Google Assistant . A single command is all it takes to activate or deactivate the relay (such as lights, locks, gates, or compatible automations) without touching switches or your smartphone. It's also perfect for creating voice routines and scenarios ("Turn on," "Turn off," "Run scene"), making your home automation faster , more convenient, and more modern .
Universal flush-mounted installation + AC/DC power supply
Mini flush-mounted module for systems and junction boxes, with AC 100–240V (50/60Hz) power supply and low voltage DC support (5V / 12–48V) depending on the model/use. Available in 1-channel or 2-channel versions, 2.4 GHz Wi-Fi, compact dimensions 39.2 × 39.2 × 18 mm (IP20). The N (neutral) terminal is provided for power supply and use with traditional control is supported (manual override).
Reliability and safety for everyday use
A flush-mounted module must first and foremost be reliable: materials and components are designed for stable indoor use and to operate within the normal domestic temperature range ( -10 ~ 40°C ). In practice, you have safer and more organized smart control, suitable for installations at home and in technical environments, with the peace of mind of a product designed to remain hidden behind a plate and do its job every day.
Smart Timer & Programming
With the Tuya dry contact WiFi relay module , you can set schedules and scenarios from the Smart Life/ Tuya app to manage your devices without thinking: daily programming , countdown , and cyclic timer (on/off at fixed times). It's ideal for lights, gates, electric locks, intercoms, systems, and automations : more convenience, more security, and less waste, even when you're not at home.
Wide Compatibility and Versatile Applications
The Dry Contact Switch Module is an extremely versatile solution, designed for home and professional applications. It is ideal for lighting control , transforming traditional light points into smart lights that can be managed from a smartphone or by voice. It is also ideal for access and door opening systems , such as electric locks, gates, intercoms and electric locks, ensuring reliability and compatibility. It can also control fans and low-voltage devices in ON/OFF mode, as well as audio systems, electronic appliances and controlled sockets . Compatible with traditional switches and available in 1 or 2-channel versions, it is easily flush- mounted without modifying the existing system, offering remote control, automations and customized scenarios for a truly smart home.
Electrical Diagram
1 Channel DC Module
2-Channel DC Module
Wiring Instructions
Frequently Asked Questions
A dry contact (NO/NC) is a relay that does not provide output voltage , but simply opens or closes a circuit. It is ideal for controlling devices such as electric locks, gates, intercoms, boilers, control relays, and access systems , in complete safety.
Yes. The module supports AC 230V or DC 5V / 12V / 24V / 48V power supply, making it extremely versatile for home and professional installations.
Yes. The module is compatible with Amazon Alexa and Google Assistant via the Tuya Smart or Smart Life apps, allowing voice control of connected devices.
The module supports three operating modes :
Self-locking : standard ON/OFF, Interlocking : one channel active at a time (useful for motors and gates), Inching : timed impulse (e.g. door or gate opening)
Yes. It can be connected to push button or rocker switches , maintaining manual control in addition to smart control.
Yes. It's perfect for controlling lights and lamps on/off , both in the home and professional settings. It doesn't support dimming.
Standard deliveries to Italy generally take 24-48 hours from the time the package leaves the warehouse.
Orders confirmed by 3:30 PM on weekdays (Monday-Friday) are processed and shipped the same day.
Orders placed after 3:30 PM or on weekends or public holidays will be processed on the next working day.
Yes, we ship internationally to the European Union and several non-EU countries via couriers such as UPS Standard and DHL Express.
For the EU, with UPS Standard the average times are 2-3 working days .
With DHL Express, usually 1-2 business days .
Yes. The compact design makes it ideal for installation behind switches, sockets or in junction boxes .
Yes. For operation , the presence of neutral in the system is required .
Tuya-GW02
Data sheet
- Power supply
- AC 100-240V 50/60Hz
DC5V,12-48V - Working temperature
- -10℃ + 40℃
- Voice Control
- Amazon Alexa and Google Home
- Mobile application
- Tuya Smart or Smart Life
- Dimensions
- 39.2x39.2x18mm
- Communication Protocol
- Wifi
- Number of Channels
- 1
2 - input voltage
- 100-240 VAC
DC5V,12-48V - Output voltage
- DC5V,12-48V
- Protection Rating
- IP20
- Maximum load current
- 1 Channel: 150W LED 5A
2 Channel: 2x150W LED 2x5A - Wifi protocol
- IEEE 802.11 b/g/n 2.4GHz
- Relay
- One (NO, NC, COM)
- Features
- Clean Contact
- Ideal for Automation
- Boilers
Gates
Intercoms and video intercoms
Lights - Works with
- Amazon Alexa
Google Home
Home Assistant
Tuya / Smart Life - Hub required
- None (Wi-Fi / standalone)
- Ideal for
- Doors, gates & garage
Heating & climate
Lights & LED - Home Assistant integration
- Cloud integration
Local integration (LAN) - Neutral wire
- Neutral wire required
Specific References
- UPC
- 949380810770
- EAN13
- 9493808107704
- MPN
- Tuya GW02
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- Tuya WiFi Relay Module with Clean Contact for Recessed Installation: Ideal for controlling signals (e.g., electric locks, gates, intercoms, command relays) as well as lights and other compatible loads.
- 1 Channel (1CH) or 2 Channels (2CH) Versions: Choose the right model to manage 1 or 2 circuits with a single module.
- Super Flexible Power Supply: Works with both AC 100–240V (50/60Hz) and low voltage DC 5V / DC 12–48V, perfect for home automation and automations.
- Clean Contact Outputs (NO/NC/COM): 1CH with COM / NO / NC terminals - 2CH with COM + NO1 + NO2 (dual output)
- Range and 2.4GHz Wi-Fi Standard: IEEE 802.11 b/g/n protocol with frequency 2.412–2.484GHz (2.4G network required).
- Control via Smart Life or Tuya Smart App: Turn on/off from smartphone, manage devices and automations even when away from home.
- Compatible with Alexa and Google Assistant: For voice control (instant smart home).
- Timers and Schedules: Create schedules and hourly automations directly from the app to reduce waste and increase comfort.
- State Memory and Command Synchronization: The last command (app or switch) remains in memory and the app is synchronized with the manual switch.
- Works with Traditional Switch: You can maintain physical control for ON/OFF.
- If Wi-Fi Goes Down, Continue Local Control with the Switch: When the network becomes available again, the module reconnects automatically.
- Maximum Load: 1 Channel: LED 150W 5A - 2 Channels: LED 2×150W 2×5A
- Mini Format for Recessed Boxes: Dimensions 39.2 × 39.2 × 18 mm, ideal for installations behind sockets/switches.
- Useful Specifications for Installations: IP20, operating temperature -10°C ~ +40°C, 2-year warranty.
- Easy Pairing: Supports Wi-Fi pairing and reset/association with button or on/off sequence.
Tuya Smart WiFi Switch Module AC 240V or DC 5–48V Clean Contact Flush Mount
€10.89
€12.89
Save €2.00Tax included
No review at the moment