$8.49 – WiFi Temperature Humidity Tester Smart Home Integration Alexa Google Assistant Mobile App Control -10 to 60℃ 0-99% Humidity.
When I was updating this page, then coupon price was $8.49 for WiFi Temperature Humidity Sensor (in Banggood). You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Latest price update (UTC time):
Banggood ($8.49)
Banggood warehouse is located in China. There are no coupons for this product in Banggood. But wait a sec… Is it a good price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $7.99)
Link: Banggood product page
Price: $8.49
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG777610
(these codes were not working in latest coupon update, but you can check them out anyway)
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.
Price history and price alert
Here is price history (for all/most countries) for WiFi Temperature Humidity Sensor. The lowest price was: $7.49.
Price records source(s): Banggood
Click on image to enlarge. 
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)).