Aliexpress
Click here… to search for 3 pcs. SONOFF RF R3 WIFI Smart RF Switch on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Sorry, but there’s no price history in my database. Only one coupon available!
Link: Banggood product page
Coupon (31.14 USD): ADMITAD2212
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply 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): BG2b0b9a, 6GSGIT, BG15Sonoff
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: 28.06 USD.
You can set price alert (for Banggood).