The coupon price for Tuya Wifi Smart Natural Gas Alarm Sensor is $31.04 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Tuya Wifi Smart Natural Gas Alarm Sensor With temperature function Combustible Gas Leak Detector LCD Display Smart Life App – EU Plug
Latest price update (UTC time):
Banggood ($31.04)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. The question is – is it a good price? Well, this price is higher than average price ($17.25)
Link: Banggood product page
Price: $31.04
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG589b2e
(these coupons are old, so probably won’t work)
Aliexpress
There’re some similar (or not) items on Aliexpress
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 Tuya Wifi Smart Natural Gas Alarm Sensor.
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)).