Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 5pcs BlitzWolf BW-SS5 2 Gang 10A 2300W Smart Switch (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. Sorry, but there’s no price history in my database. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (55.50 USD): Cuponation9
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG4e3cc9, tRaDetRaCKeR, BGa04535, 8wEbgaInS5, pROMo8cuPoN, DealBGimpact, 9OFFSUMMER, COUPONSDE1wk
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 5pcs BlitzWolf BW-SS5 2 Gang 10A 2300W Smart Switch (-3 USD)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: 49.99 USD.
You can set price alert (for Banggood).