--- product_id: 536177515 title: "– MHCOZY 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Tuya Smart life app Remote Control,Work with Alexa Google Home" brand: "mhcozy" price: "¥8375" currency: JPY in_stock: true category: "Mhcozy" url: https://www.desertcart.jp/products/536177515-mhcozy-4-channel-smart-wifi-rf-bluetooth-wireless-dry-contact store_origin: JP region: Japan --- # Customizable timer modes 10A high current relay rating 4-channel WiFi & Bluetooth control – MHCOZY 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Tuya Smart life app Remote Control,Work with Alexa Google Home **Brand:** mhcozy **Price:** ¥8375 **Availability:** ✅ In Stock ## Summary > 🔗 Connect, Control, Conquer your smart home effortlessly! ## Quick Answers - **What is this?** – MHCOZY 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Tuya Smart life app Remote Control,Work with Alexa Google Home by mhcozy - **How much does it cost?** ¥8375 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/536177515-mhcozy-4-channel-smart-wifi-rf-bluetooth-wireless-dry-contact) ## 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 - • **Powerful 10A Relay Output:** Handles high-load devices with ease and reliability - • **Robust & Versatile Design:** Wide 5-32V input, DIN rail mount, and ABS shell built for any smart home setup - • **Voice-Activated Convenience:** Works flawlessly with Alexa, Google Home & Siri for hands-free control - • **Smart Scheduling & Automation:** Set single, repeat, countdown, and sunrise timers for effortless routines - • **Seamless Multi-Protocol Control:** WiFi, Bluetooth & 433MHz RF for ultimate remote flexibility ## Overview The MHCOZY 4 Channel Smart WiFi RF Bluetooth Relay Switch Module empowers you to remotely control up to four devices via WiFi, Bluetooth, or 433MHz RF. Compatible with the Smart Life/Tuya app and voice assistants like Alexa and Google Home, it supports multiple working modes including self-lock, momentary, and interlock. With a robust 10A relay rating, wide voltage input (5-32V), and customizable timers, this DIN rail mountable module is perfect for automating garage doors, lighting, curtains, and more—ensuring smart home control even without WiFi connectivity. ## Description MHCOZY 4CH WIFI Smart Relay Module, DIY Smart Home. With the free Smart Life/Tuya app, you can remotely control your household appliances or electrical devices anytime and anywhere. Also suitable for the environment without Wi-Fi network, configure it with 2.4G WiFi first, change the router setting to block the Wi-Fi connection for the relay, then you can use the Bluetooth remote control. WiFi control, no programming required. No matter where you are, you just need to download an app to connect the Wi-Fi and control the cloud. Features: Input voltage: USB 5V or AC7-32V With signal instructions light and relay attraction light Power <1W and standby current: 80mA Cutover current <10 A, cutover voltage <250 V. 10A Relay Model Operating temperature: -40 to 70 °C. Working humidity: 40% to 80% relative humidity Function: 1.Standard self-locking mode: turn 4 connected devices on / off separately. 2. Momentary typing mode, press the open relay via mobile phone and then immediately interrupt tightening (standard one second). Locking mode: turn on one device every time and turn off others at the same time. It also has the timing share function. Features: Control 4 devices independently: turn on 4 household appliances independently. Create single/repeat/circle/countdown timers to automatically turn devices on and off at the specified time. And the timers can run themselves, even if the network is not available. Sync status: real-time device status is provided to the app. Voice control. WiFi smart switch works perfectly with Alexa enabled devices such as Echo/Tap/Dot, as well as Google home. "Alexa, turn on the light." "Alexa, turn on garage door." "Hey Google, turn off the bedroom light." " ## 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 - 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 hour 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 ABS Shell,can be fixed to electronic box,Input voltage DC 5-32V,DIY WIFI Garage door opener sprinkler controllers - Voice control,One key to link with Alexa Google assistant Siri,use your voice command to control your Garage light when busy ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09M6HTDVS | | Best Sellers Rank | 108,707 in DIY & Tools ( See Top 100 in DIY & Tools ) 121 in Smart & Remote Controlled Plugs | | Brand | MHCOZY | | Coil Voltage | 5 Volts (DC) | | Connector Type | Crimp | | Contact Current Rating | 10 Amps | | Contact Material | Silver | | Contact Type | Normally Open | | Country Of Origin | China | | Current Rating | 10 Amps | | Customer Reviews | 4.5 4.5 out of 5 stars (343) | | Manufacturer | Mic technology co.,ltd | | Manufacturer Part Number | TYVBCH4RF | | Maximum Switching Voltage | 32 Volts | | Minimum Switching Voltage | 5 Volts (DC) | | Model Number | TY4CH | | Mounting Type | DIN Rail Mount | | Operation Mode | Automatic | | Specification Met | ABS | | Unit Count | 1.0 count | | Wattage | 1 watts | ## Product Details - **Connector type:** Crimp - **Contact material:** Silver - **Contact type:** Normally Open - **Current rating:** 10 Amps - **Mounting type:** DIN Rail Mount ## Images ![– MHCOZY 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Tuya Smart life app Remote Control,Work with Alexa Google Home - 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. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/536177515-mhcozy-4-channel-smart-wifi-rf-bluetooth-wireless-dry-contact](https://www.desertcart.jp/products/536177515-mhcozy-4-channel-smart-wifi-rf-bluetooth-wireless-dry-contact) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-21*