---
product_id: 555349508
title: "Tuya Smart Life app WiFi Relay Switch Module,1 Channel AC 100-240V Dry Contact Passive Out,Work with Alexa"
brand: "mhcozy"
price: "4 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/555349508-tuya-smart-life-app-wifi-relay-switch-module-1-channel
store_origin: DK
region: Denmark
---

# 2.4GHz WiFi only for stable connectivity Customizable timing schedules & countdowns Alexa & Siri voice control compatible Tuya Smart Life app WiFi Relay Switch Module,1 Channel AC 100-240V Dry Contact Passive Out,Work with Alexa

**Brand:** mhcozy
**Price:** 4 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your smart life with instant control and effortless automation!

## Quick Answers

- **What is this?** Tuya Smart Life app WiFi Relay Switch Module,1 Channel AC 100-240V Dry Contact Passive Out,Work with Alexa by mhcozy
- **How much does it cost?** 4 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/555349508-tuya-smart-life-app-wifi-relay-switch-module-1-channel)

## Best For

- mhcozy enthusiasts

## Why This Product

- Trusted mhcozy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Setup & Pairing:** Quick auto-pairing with 2.4GHz WiFi and Bluetooth detection means you’re connected in seconds—no tech headaches.
- • **Compact & Durable Design:** DIN rail mount with a sleek ABS case ensures easy installation and long-lasting performance.
- • **Precision Timing Control:** Set sunrise, sunset, loop timers, or countdowns to perfectly sync your devices with your lifestyle.
- • **Share & Manage with Ease:** Create shared control for family or colleagues, enabling group management and smart scenes for ultimate convenience.
- • **Seamless Smart Home Integration:** Effortlessly automate your home devices with the Tuya Smart Life app and voice commands via Alexa or Siri.

## Overview

The Tuya Smart Life WiFi Relay Switch Module (SMT143) is a compact, 1-channel smart relay designed for 110-240V AC input. It supports 2.4GHz WiFi connectivity and integrates seamlessly with the Tuya Smart Life app, enabling remote control, scheduling, and voice commands via Alexa and Siri. Featuring a durable DIN rail mount enclosure and multiple operation modes (inching/self-locking), it empowers users to automate home appliances with precision timing and shared access, all while maintaining easy setup and reliable performance.

## Description

MHCOZY 1 channel 12V 110V Smart life/Tuya app wifi Relay support 2.4G WIFI only,if your router with dual bands and same SSID,please close 5G firstly.Usually once the relay was powered on,light will flash quickly,it will go to quick pairing mode automatically,no need to long press the pairing button,tap + in smart life app,it will find your SSID,enter the correct password of your wifi network.please make sure to put the relay close to your router and your phone have to connect to the same 2.4G WIFI when pairing.If it doesn't work.please long press the pairing button until light slowly flash,configure it with compatible mode.The WIFI Relay Module supports inching /self-locking mode .Users can add the device to the Smart life/Tuya APP to remote control connected home appliances or devices. In self-locking mode, customers can remotely turn on/off connected devices immediately. When in inching mode, customers can have two wiring ways to select: Turn on 1s and then auto-off Turn off 1s and then auto-on. This product Compatible with Alexa. The relay work as button, without voltage output, the power supply input (AC/DC) just for the PCBA The product enables remote control of home appliances through the mobile application Smart life, available on both Android and iOS. Supported functions include: Remote turn on/off Timing schedules Device sharing Group management Reminder: Power Supply: DC 12/24V or AC 110-240V Package included: 1 x Jog Inching Self-locking WiFi Wireless Smart Home Switch1xEnglish Instruction

## Features

- WIFI Smart life tuya app remote&Voice control,1 channel Smart Life wifi switch relay module,automate your garage door light with Alexa,with ABS case included
- Easy to setup with low voltage 110-240V,add Smart WIFI control to your home,support 2.4G wifi only,once powered on,your phone bluetooth will find it asap,tap to configure with Smart life app directly
- Come with tiny din rail enclosure,easy to smart your wall light switch,set inching mode in tuya app to automate your gate door access
- Schedule Timing function and share control,create schedule smart scenes,support countdown/sunrise/sunset/loop timer,happy share control with family
- Voice control,work with alexa ,use your voice command control when busy,work with Siri by creating shortcut smart scene in tuya app

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | mIc technology co.,ltd |
| Part number | SMT143 |
| Item Weight | 41 g |
| Product Dimensions | 3.89 x 3.91 x 1.88 cm; 41 g |
| Manufacturer reference | SMT143 |
| Wattage | 1.2 watts |
| Plug profile | DIN Rail Mount |
| Specification met | CE |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Connector type:** Screw
- **Contact material:** Silver
- **Contact type:** Normally Open
- **Mounting type:** DIN Rail Mount
- **Brand:** MHCOZY

## Images

![Tuya Smart Life app WiFi Relay Switch Module,1 Channel AC 100-240V Dry Contact Passive Out,Work with Alexa - Image 1](https://m.media-amazon.com/images/I/51eYf4VwYwL.jpg)
![Tuya Smart Life app WiFi Relay Switch Module,1 Channel AC 100-240V Dry Contact Passive Out,Work with Alexa - Image 2](https://m.media-amazon.com/images/I/51w6FIxFAsL.jpg)
![Tuya Smart Life app WiFi Relay Switch Module,1 Channel AC 100-240V Dry Contact Passive Out,Work with Alexa - Image 3](https://m.media-amazon.com/images/I/61VVB6V9wOL.jpg)
![Tuya Smart Life app WiFi Relay Switch Module,1 Channel AC 100-240V Dry Contact Passive Out,Work with Alexa - Image 4](https://m.media-amazon.com/images/I/61m6SKAXlqL.jpg)
![Tuya Smart Life app WiFi Relay Switch Module,1 Channel AC 100-240V Dry Contact Passive Out,Work with Alexa - Image 5](https://m.media-amazon.com/images/I/51zDVTR8ZAL.jpg)

## Frequently Bought Together

- MHCOZY Tuya Smart Life app Dry Contact WiFi Relay Switch Module,1 Channel DC 12/24V AC 100-240V,Compatible with Alexa Google Home
- Shelly Plus 1 UL | WiFi Smart Relay Switch with Dry Contacts | Home Automation | Bluetooth Gateway | Alexa, SmartThings & Google Home Compatible | No Hub | DIY Remote Control | Garage Door Opener

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**Shop now:** [https://www.desertcart.dk/products/555349508-tuya-smart-life-app-wifi-relay-switch-module-1-channel](https://www.desertcart.dk/products/555349508-tuya-smart-life-app-wifi-relay-switch-module-1-channel)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-22*