Basically copy coupon, view price history or create e-mail price alert. What is best price?
Dimension: 51 × 44.5x 24mm, Working distance: Up to 50M in Open Space, Output: 100-240V~50/60Hz 16A Max, Battery model: CR2032, Work temperature: -10°C~40°C, Shell material: PC V0, Input: 100-240V~50/60Hz 16A Max
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
EWeLink Zigbee Gateway Home Assistant Touch Screen Hub Smart Home Control Panel With Alexa Smarthings Google Home Alice | $91.82 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database.
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): BGJUNEGSG9, BG15Sonoff, TTSUMMER8, Cuponation9, 9OFFSUMMER
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for SONOFF 100-240V 50/60Hz 16A S-MATE Smart Switch Module eWeLink.
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)).