I did not. I’m pretty disappointed that the only response I got was “Spend $50 and find out”.
I did spend the $50 and learned.
These are not supported by Mariano’s drivers, which otherwise work with a lot of Tuya-type devices.
The “suggested” driver when I asked if Mariano could add support is Wesley’s “[ST Edge] Personal Tuya Devices - Generic EF00 Device” driver. The driver does not have direct support for this device type and the “Advanced” setup doesn’t work. The driver is also no longer in active development so new device support is basically “Write the device support yourself and Wesley may approve the pull request”. In that driver thread I’ve asked if Wesley could add support for this device, but so far they haven’t replied.
If all you need is a waterproof sensor probe, I did eventually find this product (link: Amazon.com: Smart ZigBee 3.0 Temperature Sensor w External Waterproof Temperature Probe : Automotive ), but I guess I bought the last one because it’s not available anymore? It claims to be SmartThings compatible but it hasn’t arrived yet so I can’t say. It does not include the relay or the humidity sensor, just the temperature probe. It’s battery powered so may not be suitable for outdoor use without some hacking.
On a slightly related note, I’m planning to eventually move off of SmartThings. Samsung’s support is lackluster at best, their privacy policy keeps changing (and getting worse), and device support is spotty. These MHCOZY devices do have community-made drivers for Hubitat and HomeAssistant.
If Wesley responds to the driver thread, I might be able to finagle writing the device support for these myself to integrate with that driver, but there are ZERO promises there. I really do not want to get bogged down in driver development with all the other unfinished projects on my plate.