Go down and check coupons out. Remember to check price history if it is available. What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
ESP8266 Wireless WIFI Relay Module 2/4/8 Channel ESP-12F Wifi Development Board AC/DC 5V/7-28V/5-80V Power Supply for Arduino | $6.27 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
1x 8-way Relay Module
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
1. ($15.12): BG00c906
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): ADMITAD2212, 2022ACTIESNL, Terence, 8Couponsde, MVC8SPRING, BGJUNEGSG9, TTSUMMER8, Cuponation9, BG589b2e
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – 5V/7-28V Power Supply 8 Channel ESP8266 WIFI 8-way Relay Module ESP-12F [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for 5V/7-28V Power Supply 8 Channel ESP8266 WIFI 8-way Relay Module ESP-12F? There we go.
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)).