$16.99 – Tuya Wi-Fi Gas Leak Detector Natural Gas LPG Alarm Heat Sensor TFT LCD Display Remote Monitoring Home Safety – White.
I have checked all old coupons and price is $16.99 for Tuya Wi-Fi Gas Leak Detector (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 ($16.99)
Banggood warehouse is located in China. What about the price? I have never seen better price than the current one in CouponsFromChina database, so it’s the best! There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Price without coupon: $17.99
1. ($16.99): BGEUGASALM
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
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 Tuya Wi-Fi Gas Leak Detector. The lowest price was: $16.99.
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)).