Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
1P 2P 3P 4P 10A-125A Wireless Smart WIFI Circuit Breaker Timer Tuya APP Vioce Remote Control Switch Amazon Alexa Google Home | $40.29 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Rated Current: 10A/16A/20A/25A/32A/40A/50A/63A/80A/100A/125A (max), Product Item: Wifi Smart Circuit Breaker, Certificate: CE, Connection: WIFI 2.4G, Rated Voltage: 90-250V, Product Model: ZJSB9-80Z, Installation: Din Rail
Banggood
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG0ab790, 6GSGIT, BG66354d, BG44800a, ADMITAD2212, BGSmart6, BG71ac4d, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, hoNEYbGdeAlS, BGJUNEGSG9, BG8ReviTrage
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for Tuya 10A-125A 2P WiFi Smart Circuit Breaker.
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)).