$87.99 – Tuya Wifi 4-inch Smart Touch Screen Center Control Panel Voice Control with Built-in Alexa ZigBe Gateway Built-in for Multiple Intelligent Scenes Linux System.
I have just checked coupons. The lowest price I could get is $87.99 for Tuya Wifi 4-inch Smart Touch Screen Center Control Panel (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is best price?
Latest coupon code price check (UTC time):
Banggood ($87.99)
Banggood warehouse is located in China. Is it a low price? Awesome! This price is the best in CouponsFromChina database! One coupon is available. Cool!
Link: Banggood product page
Price without coupon: $95.99
1. ($87.99): BG2956cf
put item in your cart and apply coupon code there 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
Check out price history chart (for all/most countries) for Tuya Wifi 4-inch Smart Touch Screen Center Control Panel. The lowest price was: $87.99.
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)).