1x Relay module.
Aliexpress
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| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
ESP8266 ESP-01 5V 12V 1 2 4 Way WiFi Relay Module Things Smart Home Remote Control Switch 1Channel/2Channel/4Channel WIFI Relays | $3.93 | – |
Click here to search by yourself. Here are coupons that you can use.
Updated:
Banggood
Warehouse in China.
Link: 5V/12V ESP8266 4 Channels WiFi Relay
$9.39 with coupon: BG00c906
Additional Banggood coupons:
1. First page
2. Second page
Price history and price alert
Check out price history chart (for all/most countries) for 5V/12V ESP8266 4 Channels WiFi Relay. The lowest price was: $9.09.
Price records source(s): Banggood
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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)).