Check coupons or create price alert down below. What is the best price?
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
Aliexpress
There’re some similar (or not) items on Aliexpress
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. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($46.76): BGGines
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGBG77169, BG8ca8b3, BGherra
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – EZ-9909A 5 in 1 TDS/EC/PH/Salinity/Temperature Meter [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for EZ-9909A 5 in 1 TDS/EC/PH/Salinity/Temperature Meter.
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)).