Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-WTR01 WIFI Watering Timer Gateway [EU] (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Coupon (63.77 USD): BG589b2e
(CouponsFromChina.com tip: just apply this code in your cart 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): BGBWTR01, BG10OFFAFF1, BGGREAU243, BGHUAU241, BG7285, BGDQBW8, BGSEXP223, BGFDS117, BGHWBW7, BGBFD47, BGDESFF, BGXPDE076, BGXPDE76, BGHUDE101, BGAlerabat1, BGHUCJ85, BG66b1d6, BG650a29, BG1e6056, Terence, BGac0921, BG9d9a88, BG054043, BGLMW9, BGLMW10, BGLMWCZ5, BGc489bf, BG0430b3, 8BGwbg2204, BG09e578, tRaDetRaCKeR, BGHUMA285, BGefcc59, 8wEbgaInS5, BGGarden20, BGccd331, BGf5b69c, BG4a1593, BGMX279, BGHUXC074, BGe624e6, BGHUMA286, BGHU2254, BGf625a4, BG822ee0, BG23ALEAprD, BGacb63a, BG081591, BGAUGUST8, BGd07c93, BGc4a05f, BGCOUPERTBF8, BG13627c, BG3622b1, BGbee136
(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 – BlitzWolf BW-WTR01 WIFI Watering Timer Gateway [EU] (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for BlitzWolf BW-WTR01 WIFI Watering Timer Gateway.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).