---
product_id: 391078783
title: "4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Phone app Remote Control,Compatible with Alexa Google Home (Tuya 4CH 5V AC/DC7-32V)"
brand: "mhcozy"
price: "6564 som"
currency: KGS
in_stock: true
reviews_count: 13
category: "Mhcozy"
url: https://www.desertcart.kg/products/391078783-4-channel-smart-wifi-rf-bluetooth-wireless-dry-contact-relay
store_origin: KG
region: Kyrgyzstan
---

# 10A max switching current 4-channel WiFi & Bluetooth control Adjustable momentary time 2s-1min 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Phone app Remote Control,Compatible with Alexa Google Home (Tuya 4CH 5V AC/DC7-32V)

**Brand:** mhcozy
**Price:** 6564 som
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your smart home game with 4-channel power and total control!

## Quick Answers

- **What is this?** 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Phone app Remote Control,Compatible with Alexa Google Home (Tuya 4CH 5V AC/DC7-32V) by mhcozy
- **How much does it cost?** 6564 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/391078783-4-channel-smart-wifi-rf-bluetooth-wireless-dry-contact-relay)

## 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

- • **Fail-Safe Offline Control:** Bluetooth and RF remote options keep you connected even when WiFi drops, so you never lose command.
- • **Seamless 4-Device Control:** Independently manage 4 appliances via WiFi, Bluetooth, or 433MHz RF for ultimate smart home flexibility.
- • **Voice-Activated Convenience:** Effortlessly control your home with Alexa, Google Home, or Siri—because your hands deserve a break.
- • **Customizable Operation Modes:** Choose self-lock, momentary, or interlock modes with adjustable timing to fit any automation need.
- • **Powerful & Reliable Switching:** Handles up to 10A and 32V with metall contacts, ensuring robust performance for heavy-duty devices.

## Overview

The MHCOZY 4 Channel Smart WiFi RF Bluetooth Relay Switch Module offers versatile remote control of up to four devices via WiFi, Bluetooth, or 433MHz RF. Compatible with Alexa, Google Home, and Siri, it supports multiple operation modes including self-lock, momentary, and interlock, with adjustable timing. Rated for up to 10A and 32V, it mounts easily on DIN rails and ensures uninterrupted control even offline, making it a must-have for professional-grade home automation.

## Description

MHCOZY 4CH WIFI Smart Relay Module, DIY Smart Home By using the free Smart life/Tuya App remote control your home appliances or electrical devices anytime and anywhere.Suit for the environment without wifi network also,firstly configure it with 2.4G wifi ,change router setting to block wifi connect for the relay,then you can use bluetooth remote. WIFI control, no need to program. No matter where you are, you only need to download a APP to connect the wifi and control the cloud.Features: input voltages : USB 5V or DC7-32V With signal instruction light and relay pull-on instruction light Power <1W, and quiescent current:80mA Cutover current<10A , Cutover voltage<250V 10A Relay Model Working Temperature: -40 to 70 degree Working Humidity: 40% to 80% RH Function: 1.Default Self-locking latching mode: Turn on/off 4 connected devices separately.2.Momentary inching mode,Press the open relay by mobile phone, then cut off the pull-on imediately(default one second). Interlock mode: Turn on one device every time, and turn off others at the same time.t has the timing-share function at the same time. 2. . Feature:Independently control 4 devices: It is the new 4-channel design which can make you remotely turn on/off 4 home appliances independently create single/repeat/circle/ countdown timers to automatically turn on/off devices at the specified time. And the timers can run themselves even the network is unavailableSync Status:Real-time devices status provided to App Voice control Wifi smart switch can work perfectly with Alexa-enabled devices like Echo/Tap/Dot, as well as Google home. Control home appliances or electrical devices with your voice like this:“Alexa, turn on the light.” “Alexa, turn on Garage door.” “Hey Google, turn off the bedroom light.” “ Package included: 1 x 4CH WIFI Relay, 1 x instruction

Review: Great product and perfect application! - I purchased this product to integrate into my pool pump to make it so that I can control from my phone. This device was very easy to set up and integrated it into the Smart Life app without any problems. I have it in a plastic waterproof container outside and have no connection issues to my Wi-Fi, even though the router is inside. Once to it. The quality is great and the product can be used for so many different applications. Automating a pool pump was so easy with this. After getting it working with the Smart Life app, I then integrated it into home assistant where I set up my schedule for automation. Couldn't be happier with this purchase!
Review: Works EXACTLY as described and EXACTLY what I need! - I see in the description that desertcart states this is a "Frequently returned item". I suspect that a lot of the returns are that people don't really understand the device. For me, it is EXACTLY what I wanted. I need a WiFi switch that I can control my gate operator and garage doors remotely. This is GREAT for that purpose. I connected each of my garage doors to one of the 4 relays. I put the two wires from each to the "COM" and "NO" connections. I then set the control to "INCHING" for each and the inching time to one second. Now when I hit the app for one of the doors, the relay closes for one second then reopens. Just like hitting the button on the garage wall! As far as the review about it not being a "true latching" relay, I easily solved that by supplying power to this controller from the Uninterruptable Power Supply that I already had in the garage. Now it never loses power, so the relay always stays where I want them.

## Features

- Bluetooth WIFI Relay,Smart life tuya app wifi remote& 433Mhz RF&Bluetooth remote 4 Channel Smart Relay.Easy to configure to Smart life app,working voltage is DC 5V or DC 7-32 V.Once configured with Smart life app,you can use bluetooth remote or 433mhz RF control when lose WIFI connection,support fixed code 433Mhz RF
- Widely Usage,MHCOZY 4 channel WIFI Relay,with 3 working mode,self-lock Momentary and Interlock Switch,you can set mode by channel,adjust momentary time from 2 second to 1 minute in Smart life app.DIY WIFI Garage Door Opener,Automate chicken hoop door shutter blind curtain
- Schedule and Share with Family,you can set countdown sunrise Repeat schedule,and easy share phone remote to with your family.
- Simple DIN Rail 24V Relay, with ABS Shell,can be fixed to electronic box
- Voice control,One key to link with Alexa Google assistant Smartthings Siri,use your voice command to control your Garage light when busy

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09M6HTDVS |
| Best Sellers Rank | #111,240 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #204 in Electrical Outlet Switches |
| Brand Name | MHCOZY |
| Coil Voltage | 5 Volts |
| Connector Type | Crimp |
| Contact Current Rating | 10 Amps |
| Contact Material | Metall |
| Contact Type | No Nc Com |
| Current Rating | 10 Amps |
| Customer Reviews | 4.4 4.4 out of 5 stars (322) |
| Included Components | 4 channel wifi dry contact relay board and ABS shell |
| Manufacturer | Mic technology co.,ltd |
| Maximum Switching Current | 10 Amps |
| Maximum Switching Voltage | 32 Volts |
| Minimum Switching Voltage | 5 Volts (DC) |
| Model | TY4CH |
| Mounting Type | DIN Rail Mount |
| Operation Mode | Automatic |
| Part Number | TYVBCH4RF |
| Smart Home Compatibility | Smart Home Compatible |
| Specification Met | CE |
| Unit Count | 1 Count |
| Wattage | 1 watts |

## Product Details

- **Connector Type:** Crimp
- **Contact Material:** Metall
- **Contact Type:** No Nc Com
- **Current Rating:** 10 Amps
- **Mounting Type:** DIN Rail Mount

## Images

![4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Phone app Remote Control,Compatible with Alexa Google Home (Tuya 4CH 5V AC/DC7-32V) - Image 1](https://m.media-amazon.com/images/I/51hQmIX0Y6L.jpg)

## Questions & Answers

**Q: I am setting up a mhcozy 4 channel wifi relay.  which device on the smartlife app should i choose?**
A: i use smart life and work great

**Q: I refuse to use apps and prefer to host my own. Can this be flashed with tasmota?**
A: Who knows ! It might be easier to find an alternate controller

**Q: Is the power input polarity, reversible?**
A: I power it with a USB plug like the one used for charging your phone.  The USB spec is 5V DC.  I'm guessing all of the power circuitry in the unit is also DC, so the answer would be no, but that's just a guess.

**Q: Can I use this to control a bathroom fan/heater/light combination unit?**
A: You can but you need a low voltage power supply such as USB 5vdc or 5-25 ac/dc adapter.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product and perfect application!
*by S***D on July 8, 2024*

I purchased this product to integrate into my pool pump to make it so that I can control from my phone. This device was very easy to set up and integrated it into the Smart Life app without any problems. I have it in a plastic waterproof container outside and have no connection issues to my Wi-Fi, even though the router is inside. Once to it. The quality is great and the product can be used for so many different applications. Automating a pool pump was so easy with this. After getting it working with the Smart Life app, I then integrated it into home assistant where I set up my schedule for automation. Couldn't be happier with this purchase!

### ⭐⭐⭐⭐⭐ Works EXACTLY as described and EXACTLY what I need!
*by R***Y on April 15, 2025*

I see in the description that Amazon states this is a "Frequently returned item". I suspect that a lot of the returns are that people don't really understand the device. For me, it is EXACTLY what I wanted. I need a WiFi switch that I can control my gate operator and garage doors remotely. This is GREAT for that purpose. I connected each of my garage doors to one of the 4 relays. I put the two wires from each to the "COM" and "NO" connections. I then set the control to "INCHING" for each and the inching time to one second. Now when I hit the app for one of the doors, the relay closes for one second then reopens. Just like hitting the button on the garage wall! As far as the review about it not being a "true latching" relay, I easily solved that by supplying power to this controller from the Uninterruptable Power Supply that I already had in the garage. Now it never loses power, so the relay always stays where I want them.

### ⭐⭐⭐⭐⭐ Good simple wifi controlled relay bank.
*by R***4 on June 19, 2025*

I run my drip irrigation with this. Few 12 volt water solenoids, some outdoor cabling, and the standard 1/4” poly tubing. Ended up being a whole lot cheaper than the 4 channel irrigation timer and I can control it from my phone. I’ll have to put it in a weather resistant enclosure of some variety, but it’s currently stuck to the bottom of a solar panel with the $10 charge controller that’s been out there for 3 years now. I have a second one that’s lived in the utility cabinet so I can control the water pump, the water heater, and a dump load that’s been going for quite a while too. Connects to wifi easy, easy to set up timers, and the relays on the board haven’t given up on me yet.

## Frequently Bought Together

- MHCOZY 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Phone app Remote Control,Compatible with Alexa Google Home (Tuya 4CH 5V AC/DC7-32V)
- DieseRC 4 Channels WiFi Smart Switch, DC 5V 12V 24V 36V Passive Output Relay Module Ewelink APP WiFi Control Compatible with Alexa/Google Home, Inching/Self-Locking Switch

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**Shop now:** [https://www.desertcart.kg/products/391078783-4-channel-smart-wifi-rf-bluetooth-wireless-dry-contact-relay](https://www.desertcart.kg/products/391078783-4-channel-smart-wifi-rf-bluetooth-wireless-dry-contact-relay)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-05-14*