Totalizer (Max.): 9 /999.9 GAL or 9 /999.9 L, Units of Measure: Gallons or Liters, Water Flow Rate: 20L/H – 2 /400L/H, Thread: for taps with 3/4” or 1” BSP or NH thread, Battery: 1 * CR2032 (Included), Working Pressure: 0.5 bar~5 bar (7.25~72.5PSI), Water Temperature: 41 to 104 ˚F (5 to 40 ˚C), Waterproof: IPX6, Brand: RAINPOINT.
Check coupons or create price alert down below. You probably want to know what is the 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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($25.19): BG23ALEAprD
2. ($26.31): BG589b2e
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGMX284, BG3c8551, BGJUNEGSG9, BG7b9c94, BGea947e, BGHUXC107, BGbfe0b4, BG1ccfe0, BG56f78b, BG21a258, BG8d94e7, Cuponation9, BG2d7e03, BGce49c8, BG0aac08, 9OFFSUMMER, BGbcb244, BG88aceb, BG1175b3, BG8ReviTrage, BG00c906, BGdbe184, BGae4373, BGf625a4, BG41da4f
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – RAINPOINT Water Flow Meter [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for RAINPOINT Water Flow Meter. The lowest price was: $19.99.
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)).