Moisture tester:

Amazon:
PTE Tester Calibrated for for DOT 4 Brake fluids
by PTE
4.2 out of 5 stars 467 ratings | 22 answered questions
List Price: $8.49
Price: $6.99 & FREE Returns
You Save: $1.50 (18%)
Get $100 off instantly: Pay $0.00 $6.99 upon approval for the Amazon Prime Store Card. No annual fee.
Color: Calibrated
Quick and easy way to test for moisture content in the brake fluid; results appear in seconds
LED light indicators show percentage of water in the brake fluid
Calibrated for cars using DOT 4 brake fluid only (found in most cars produced since 2006)


Acidity and moisture test strips

https://www.acustrip.com/res/pdf/61000_SS.pdf

https://www.acustrip.com/cgi-bin/proddesc.cgi?s=61000

Takes 1 x AAA/1.5V battery (included)
Only takes seconds to know t

Last edited by showkey; 04/17/2020 5:33 PM.