According to my DB the lowest price is 7.99 USD for TDS Meter Water Tester (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is best price?
Latest coupon code price check (UTC time):
Banggood (7.99 USD)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. I think you want to know if the price is good. Well, this price is higher than average price (5.22 USD)
Link: Banggood product page
Price: 7.99 USD
Old coupons (from the oldest to the newest): BG0ed120, BGXIFD397, BGM1TOOLS88, BG896e50, BG1e01af, BG7a373e, BG051f88, BGTOOS729
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
TDS Meter Digital Water Tester 0-9990ppm | 2.53 USD | – |
More on Aliexpress… Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for TDS Meter Water Tester 0-9990ppm.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).