Tuya WiFi 4CH Relay: Dry Contacts, RF433 and Temperature/Humidity Sensor

Опубликовано 10 мая 2026, 14:15

This is not just a Tuya WiFi 4CH relay, but a universal automation module with dry contacts, RF433, a temperature/humidity sensor, and the ability to work as a simple thermostat for your smart home. 👉 Tuya WiFi 4CH Relay: s.click.aliexpress.com/e/_EJhy... or alli.pub/7c0ifq, or enter the search code AYM4PS on the AliExpress homepage.

In this review, I take a detailed look at the Tuya Smart WiFi 4 Channel Relay DC 7-32V / AC 85-250V 10A with Tuya Smart, Smart Life, NO / NC / COM dry contacts, smartphone control, physical buttons, RF 433 MHz remote control support, and an external temperature sensor or temperature and humidity sensor.
This is an updated version of the popular 4-channel Tuya relay, but now it is much more useful for real smart home automation. Thanks to the temperature and humidity sensor, this relay can be used not only for simple on/off control, but also for heating systems, boilers, pumps, ventilation, exhaust fans, greenhouses, aquariums, terrariums, server cabinets, and other systems where temperature or humidity control is important.
In the video, I show how to connect the relay to Tuya Smart / Smart Life, how all four channels work, how to use the automatic temperature and humidity mode, timers, schedules, activity logs, sensor sensitivity settings, temperature and humidity calibration, relay status after power loss, and integration with Home Assistant through Tuya or Local Tuya.
I also test how the dry contacts work in practice. First, I connect a multimeter in continuity mode to show that the relay can work as a simple logical open/close contact without sending voltage to the controlled device. Then I connect a lamp to show that the relay contacts can also switch power for a real load.
Main features of the Tuya WiFi 4CH Relay:
- 4 independent control channels
- NO / NC / COM dry contacts
- DC 7-32V or AC 85-250V power input depending on the version
- micro USB 5V power support
- up to 10A per channel
- total power up to 16A / 3500W
- WiFi 2.4 GHz + Bluetooth
- RF 433 MHz remote control support
- external temperature sensor or temperature and humidity sensor
- automatic mode based on temperature or humidity
- Tuya timers, schedules, and smart scenes
- Home Assistant support

This relay can be useful for anyone building a smart home, automating heating, controlling a boiler, pumps, valves, fans, exhaust systems, lighting, gates, or any device where dry contacts or simple power switching are needed.

👉 Tuya Smart TH10 Zigbee : s.click.aliexpress.com/e/_EuUM... or alli.pub/7c0ix8

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00:00 Introduction
01:30 Characteristics
03:04 Equipment
04:19 Tuya WiFi 4CH Relay
06:14 Tuya Smart app
11:37 Tuya Automation
13:24 Home Assistant
14:51 Conclusions

🎥 TUYA TYWD Smart WiFi Relay with Dry Contacts and 433 MHz RF Remote Control - youtu.be/Mbx5SVUL-5Q

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