Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Operating current: 30 – 200mA, Power supply: USB 5V, Convert 433MHz RF remote to APP via WiFi, Operating voltage: 3 – 3.6V
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):
Banggood
Banggood warehouse is located in Europe . There is one great coupon!
Link: Banggood product page
1. ($15.97): BGSmart6
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): elec, e2bcea, 502C6B, BGRF433, SONOFF15, BG9NY, 2020CNY, BGVDay10%off, 28cdf0, BGTT10, bGhOnEy10, BGSMOFF, BGSOFRFB, BGSONOFF15, BGELIG0920, 13f142, BGHALLOWEEN, BgcLuBofErtA10, BGSONOFF16, BGAFF10OFF, BGSTHO15, BGHONEY2110, BGSHOM15, BGSHE15, 6GSGIT, BG29f5bf, BG15Sonoff
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – SONOFF RF Bridge 433MHz Replacement RF Controller ($-3)
Price history and price alert
Here is price history (for all/most countries) for SONOFF RF Bridge 433MHz Replacement RF Controller [EU/UK].
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)).