Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
SONOFF SNZB-01-ZB Wireless Smart Switch | 11.56 USD | – |
 |
Sonoff ZBMINI L2 Smart Zigbee3.0 Switch | 17.21 USD | – |
 |
Sonoff ZBMINI L2 Smart Zigbee3.0 Switch | 17.21 USD | – |
 |
Sonoff ZBMINI L2 Smart Zigbee3.0 Switch | 17.21 USD | – |
 |
SONOFF ZB Dongle-E Wireless Zigbee Gateway | 24.47 USD | – |
 |
3pcs SONOFF SNZB-03-ZB Motion Sensor | 30.33 USD | Paste $1/30 coupon “RIDM5XPSLNRQ” in the cart |
![10pcs SONOFF SNZB-02-ZB Temperature Humidity Sensor [EU]](https://couponsfromchina.com/wpthumbnails/Resized1005004595069526.jpg) |
10pcs SONOFF SNZB-02-ZB Temperature Humidity Sensor [EU]  |
117.57 USD | Paste $1/30 coupon “RIDM5XPSLNRQ” in the cart |
More on Aliexpress… Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (17.28 USD): Cuponation9
Coupon (17.47 USD): TTSUMMER8
(CouponsFromChina.com tip: 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
Old coupons (from the oldest to the newest): BGSmart6, MVC8SPRING, tRaDetRaCKeR, pROMo8cuPoN, BGJUNEGSG9, BG15Sonoff
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for SONOFF ZB Dongle-P Zigbee3.0 USB Dongle is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).