Go down and check coupons out. Remember to check price history if it is available. Best price?
3 IN 1 soil moisture content, PH and illuminance metering
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
KCASA 12Pcs/Set Nylon Oil Painting Watercolor Gouache Paint Barbecue Brush Home Wall Decor Tool | $12.44 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($12.88): 2203ActiesNL
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 30Gtool, vipupgrade8, 25gtool, TTxBG10, aff7off, bgssaff9, AFfbG10, affbg10, BGBFAFF2019, BGCITYADS2019, BGBGHFRI15, BGKC314, BGVDay10%off, BGHOMEG12, BGTT10, bGhOnEy10, BGdragonBoat, BGCNKCARJP, BGJULY247, BGAFF10OFF, BGHome15%, BGHOMEA15%, BgcLuBofErtA10, BGGDJU75, BGMA0306, BGCuponation10, BG10OFFAFF, BGMAR2805, BGwhielabel, 13f142, BG10OFFAFF1, BGAU3001, BANGGOODSD, 6GSGIT
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for KCASA KC-SMT100 Pro Hydroponics Analyzer is here.
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)).