$53.99 – SONOFF NSPanel WiFi Smart Thermostat Wall Switch White (Banggood, Aliexpress: SONOFF NSPanel WiFi Smart Thermostat Wall Switch EU US Temperature Display All-in-One Remote Controller with Alexa Google Home – EU Plug (the best price with coupon)).
ATM you can buy SONOFF NSPanel WiFi Smart Thermostat Wall Switch White for $53.99 (in Banggood). Just check coupons out (with price alert and history). Do you want to know what the best price is?
Latest coupon code price check (UTC time):
Banggood ($53.99)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. What about the price? Well, this price is higher than average price ($52.15)
Link: Banggood product page
Price: $53.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGb0d0b9, BGREUPSNF3
(probably won’t work, but you can try them out)
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 SONOFF NSPanel WiFi Smart Thermostat Wall Switch White. The lowest price was: $49.79.
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)).