Irrigation Circle Can be can be control by whirl button / and minimum of circle time is 1 minute / maximum is 120 minutes., Batteries 2x 1.5V AAA Batteries （Not include), Irrigation Frequency Can be control by whirl button / and minimum of irrigation time is 1 hour / maximum is one week., Material Plastic.
Basically copy coupon, view price history or create e-mail price alert. Best price?
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 Europe 
. I don’t want to misguide you about the price. I don’t know if it’s good, because I don’t have enough records in my database… I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($23.02): BG589b2e
apply it in your cart 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): BGd26f05, BG00c906, BGdbe184, BGf625a4
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $19.99.
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)).