Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
1x SONOFF® 4CH Pro R2 Module
Banggood
Banggood warehouse is located in Europe . I couldn’t find any coupon for this product on latest product update.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): elec, 166253, SONOFF15, BGE13, bGpAnDacHeCk, 0e7f33, FBCOUPON1, bGhOnEy10, BGSMOFF, BGSONOFF15, BGSONOFF16, BGAFF10OFF, BGHONEY2110, BGSHOM15, BG15Sonoff
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – SONOFF 4CH Pro R2 Module ($-3)
Price history and price alert
Here is price history (for all/most countries) for SONOFF 4CH Pro R2 Module [EU].
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)).