Humidity measurement accuracy: +/-%3RH, Power consumption: 350uA, Temperature measurement accuracy: +/-0.5C, Temperature measurement: -40C-80C, Size: 40*40*18mm, Power supply: 3.1-5.5V, Humidity measurement: 0-99.9%, Humidity resolution: 0.1%RH, Temperature resolution: 0.1%C.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Updated: 31-07-2025
Banggood
Warehouse in Europe 
.
Link: HomeKit DoHome Temperature Humidity Sensor [EU]
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons:
1. First page
2. Second page
Price history and price alert
Not enough data to show price history chart… $2.99 is the only recorded price. It was not cheaper than that since we have saved it in DB.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).