Display Type: Digital, Model Number: EZ-9909A, Weight: 170g, Waterproof rating: IP67, Measuring range of table salinity: 0.00-25.00%, Display: Support backlight, The measurement range of sea water salinity: 10.1-200.0ppt., Battery: 3x 1.5V LR44 Button Battery (not includes), 5 in 1 function: TDS/EC/PH/Salinity/Temperature Tester, 5.01-25.00% (±1%), Accuracy: 0.01-5.00% (±0.1%), Display size: 33*24mm, Size and weight: 183*37*37mm(7.2*1.5*1.5in)/90g(3.2oz), PH measurement range: 0.01-14.00pH, EC measuring range: 0-10000US/cm, TDS measurement range: 0-1000ppm.
Price history, coupons and price alert are available on this page. 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:
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Yieryi 5 in 1 Digital Water Quality Meter TDS PH EC Salinity Temperature Tester for Spa Pools Aquariums Salt Freshwater Food | $22.67 | – |
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. Well, there is one coupon available right now.
Link: Banggood product page
1. ($46.76): BGGines
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGBG77169, BG8ca8b3, BGherra
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – EZ-9909A 5 in 1 TDS/EC/PH/Salinity/Temperature Meter [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for EZ-9909A 5 in 1 TDS/EC/PH/Salinity/Temperature Meter. The lowest price was: $27.99.
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)).