I am monitoring price for Smart Thermometer and it is for 10.99 USD now (in Banggood). Just check coupons out (with price alert and history). Do you want to know what the best price is?
Latest coupon and price update (UTC):
Banggood (10.99 USD)
Banggood warehouse is located in China. Coupons for Tuya Bluetooth Smart Thermometer Humidity Sensor? Nope, there’re no coupons in Banggood. Good or bad price? This price is higher than average price (9.66 USD) for this item.
Link: Banggood product page
Price: 10.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG5b59df
(you can check these old coupons out, but these probably won’t work)
Aliexpress
Click here… to search for Tuya Bluetooth Smart Thermometer Humidity Sensor on Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Tuya Bluetooth Smart Thermometer Humidity Sensor.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).