






Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.
🔌 Power your smart home with precision and ease — control at your fingertips!
The MHCOZY Tuya Smart Life Dry Contact WiFi Relay Switch Module is a compact, 1-channel smart relay compatible with 2.4GHz WiFi networks and voice assistants like Alexa, Google Home, and Siri. Supporting AC 100-240V input, it offers inching and self-locking modes for versatile automation of home appliances such as garage doors and lighting. Easy to install with a DIN rail enclosure and ABS casing, it enables remote control, scheduling, and device sharing via the Tuya Smart Life app, making it an essential upgrade for any connected home.
| ASIN | B0CG8R732L |
| Best Sellers Rank | #211,096 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #384 in Electrical Outlet Switches |
| Brand | MHCOZY |
| Brand Name | MHCOZY |
| Connector Type | Clamp |
| Contact Material | Brass |
| Contact Type | No Nc Com |
| Current Rating | 5 A |
| Customer Reviews | 4.4 out of 5 stars 879 Reviews |
| Included Components | WIFI DRY CONTACT RELAY |
| Manufacturer | mIc technology co.,ltd |
| Maximum Switching Voltage | 240 volts |
| Mounting Type | Screw Mount |
| Number of Terminals | 2 |
| Operation Mode | Automatic |
| Part Number | SMT143 |
| Specification Met | CE, FCC |
| Wattage | 1.2 watts |
N**1
Pair this with the Tuya app and you're golden
This product was extremely easy to setup. And it uses the Tuya app, which is excellent! I very highly recommend using the Tuya app for smart device control. I have this on my Federal Signal FCM controller and scheduled in the Tuya app to do a noon blast every Saturday. It always goes off right on time, or like 5 seconds late at most. This allows me to activate my siren from anywhere in the world, without needing a radio license. Then i can just use my Baofeng 888S on FRS for radio activation at home as a backup if Wifi fails, or to access functions on the controller that can only be accessed by radio. If you're in need of a Wifi controlled relay set, this is the one you want! I use inching mode set to 2 seconds to press the button on my FC. And interlock mode so i cant press multiple at once. You just tap the button for any relay, and it holds the relay on for 2 seconds and then turns it off automatically. Then my Federal Signal FCM takes control from there. You can go down to a 1 second inch minimum.
K**A
It works. Easy to connect to wifi.
Tiny, runs on 115vac, paired up first time with wifi using Bluetooth as well. I’m planning on using it to replace one of the switches in a 3 way switch setup for outdoor lights so I can control them as I arrive at night. Bench testing indicates setting “Remember last status” to OFF and “Switch Type” to RESET allows a push button switch to turn it on or off and the app does the same thing. No instructions on how to get to these settings. Touching the picture of the switch then settlings gets you there. My switch box happens to have 115v & neutral in it. Check before you buy. If there are 2 switches in your box, the other one may have these. It also behaves itself during power interruptions. Just close the app and re-open it to get it to synch with the relay. More later.
B**T
It just... works! Easy to integrate into projects too
I mounted this in an old sprinkler controller enclosure and wired it to the 24vac transformer that drives the valves. I tested running the board itself off 24vac and it worked great but ended up using a USB cable and wallwart that was already in the enclosure from my last project for no good reason. This board worked right away, boots up super quickly, and I've replaced an old sprinkler controller with something I can either control directly with my phone or via my mail sprinkler controller because there's an easy to use API (Aymkdn/tuyacloud-php on github is one, there are others) that lets me write software to control this. It can practically be used as a sprinkler controller out of the box, just add a 24VAC power source, an enclosure, and a little bit of wire to string it all together and now you got yourself a stew going. Will buy again soon to replace yet another sprinkler controller.
D**E
Make dumb switches, smart!
This Tuya-compatible Wi-Fi relay switch is super versatile. It can make any light smart, but the standout features are key. You can set schedules and even decide how it behaves after a power outage, no more coming home to a bunch of surprise lights on. I loved that you can group devices so one switch triggers multiple items. It integrates with Tuya, and I easily brought it into Home Assistant. Plus, it’s perfect if you don’t want to lose manual control since the physical switch still works. It has a very compact size that allows it to easily fit into electrical boxes with a bit of extra room. A great choice for tying your smart home together!
D**N
Great way to automate an electronic gate --UPDATED REVIEW PLEASE READ THE WARNING BELOW
I used this to automate my GTO gate. The gate is just beyond the range of my remote so if someone comes I have to go outside and open it. Using this device (and a range extender) I was able to automate the gate so now Google and Alexa can be told to open the gate from inside the house. Makes it SO much more convenient. I was also able to set up geofencing so the gate automatically opens when I approach my property, My only objection is that it uses the Tuya app instead of the ewlink app, as tuya is not as friendly with smartthings.
R**T
easy setup - loaded app, entered wifi info and was ready to connect to a load
The setup took only a few minutes to load the app, connect to a power supply, connect to WiFi and rename the switches. A very good price for the software and hardware. (The instruction sheet has very small lettering - use a bright light and magnifying glass).
A**R
Not that simple to flash Tasmota
They put DIY but they put crappy Tuya firmware on it. There is a USB port on the device but its ONLY for power. If I wanted to use the cloud to control my thermostat I would of gotten an beautiful Ecobee. You have to solder wires for a flasher to flash Tasmota and am waiting for that to arrive I will follow up but as it stands its not really worth the price. My board is a CB3S and you need use CEN pin 3 to ground to pin 9 turned on first and pin 15 UART1_RXD and pin 16 UART1_TXD an power 3.3v is pin 8. Update got the flasher was unable to flash tasmota maybe I am an idiot or Windows 11 ended up ripping a bunch of pads trying to get the device off the board to try to flash it maybe I can salvage part of the board with the relays but main and maybe just cut half of the board off with the other logic. Such a shame this board doesn't offer a direct ability to flash it since it has a USB port on it...
T**I
WOW This works great
I have an AC unit in my garage and loft. The thermostat has been in the loft. I had to go up and down the stairs whenever I wanted to change the settings. When I had the house built I did have the builder run a control wire from the AC unit to the lower wall in the garage. So with this wifi switch I was able to run the wiring from both thermostats, and from the AV unit to switch, for the control to the thermostat I wanted. The needed APP works OK. Only issue is when you select all on or off then the individual switches are displayed (nice) then you have to hit the OK before you can make another selection. You actually can name each switch, but have not yet found how to change the name (or add a name) to the ALL switches. I would like to name the "All On" to lower Control etc.
D**6
Buon prodotto
Funziona come indicato, Wi-Fi stabile, purché vicino, non più di 5/6 mt
H**R
Würde ich bei Bedarf sofort wieder kaufen.
Alles top und funtioniert einwandfrei
H**C
Facilité
Très facile à mettre en oeuvre, il faut voir avec la liaison avec d'autre module Wi-Fi
F**A
cumple su función
funciona correctamente y no he tenido que instalar una aplicación ya que tenía Smart Life y lo ha reconocido nada mas abrirla en mi movil, de momento satisface mis necesidades para activar un pequeño motor remotamente.
P**N
Domotique
Parfait fait son job
Trustpilot
3 weeks ago
1 week ago