BRAKE FLUID TESTER, reads DOT 3, DOT 4 and DOT 5.1 fluid, Used to examine the quality of your brake fluid by indicating the percentage of water in the fluid, 5 LED readout indicates the percentage of moisture, includes 1 AAA battery
NPD Part Number : 914-14 Manufacturer Reference #'s: W182,
Haven't tried it out yet.
Submited on March 07, 2021 by Paul B.
YES I would recommend this product.