$12.99 – Tuya Smart WiFi Garage Door Sensors Opener Controller 100V-240V Voice Remote Control Switch support Alexa Google Home Smart Life.
I have checked all old coupons and price is $12.99 for Tuya Smart WiFi Garage Door Sensor Opener Controller (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
Latest coupon code price check (UTC time):
Banggood ($12.99)
Banggood warehouse is located in China. Is it a low price? Well, according to CouponsFromChina database this price is the best in history (2 records). There is one coupon right now! Check this out.
Link: Banggood product page
Price without coupon: $13.39
1. ($12.99): BGdae766
paste coupon code in your cart and click Apply 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
Do you need price history chart (for all/most countries) for Tuya Smart WiFi Garage Door Sensor Opener Controller? There we go. The lowest price was: $12.99.
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)).