Some tuya devices on sale for 3-4 USD. aliexpress

Hi Folks, not spam nor do I get a commission. Anyway if you have the AliExpress app, you can grab some tuya zigbee devices for a few bucks. I see a water sensor and a contact sensor. You have to click on the "1.79" banner at the top of the app.
Here's an example of a big ugly motion sensor for 2.69. these it's sell out fairly quickly, so if interested...