Size: 110*33*29.5mm/4.33*1.29*1.16inches, Working Time Range: 1-999 seconds, Weight: 90g/3.17Ounce, Countdown Range: 1-999 hours, UI water pressure: ≥30psi (200kpa), Input Voltage: 5V, Water flow: 0.2-0.4LPM, Rated current: ≤800mA, .
Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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. We have found one coupon for this product!
Link: Banggood product page
1. ($31.95): BG00c906
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG0eead6, tRaDetRaCKeR, BG36610f, 8wEbgaInS5, BG505b8f, BG4501c6, BGa63c81, BGMX278, BG6ac00a, BGbb2e8a, BG3529e1, BG7d77a3, BGad5f82, BG94a9f4, BGa78c8c, BGa3ac8d, BG02e13c, BGc616b7, Cuponation9, BG8ReviTrage, BGcoupon8off, BGGutscheine
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for Smart Automatic Plant Waterer Drip Irrigation System Timer? There we go. The lowest price was: $25.99.
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)).