Brake Fluid Liquid Tester,Hydraulic Fluid Liquid Oil Moisture Analyzer with 5 Led Indicators,DOT 3 DOT 4 DOT 5.1 Brake Fluid Liquid Tester Pen for Check Engine Car Accessories

Great product and price. Using on my old cars.

It’s easy to use and so far I’d say it works good. Battery life seems to be just fine. But it is cheaply made. I’d probably but it again if breaks

Works as advertised. Portable and value for money.

Item arrived on time. Easy to work.Just needs a AAA Battery.

The second time i used it the plastic surrounding the probes fell apart and became unusable. There was no warning about fluid touching the plastic. I can only assume that's the case. Regardless that's not practical way to use tester.

It was immediate I mean been nice of a battery to come with it but it seems to work really well and which helps me a lot because the dealerships tend to say that you need a brake fluid service because your brake fluid's worn out and this is saying a brake fluid still good and being old school I also looked at the brake fluid and checked didn't it still seems to be good so it's saved me around $200 to $300 on a brake fluid service 🐕‍🦺

HiBack in October 16 I purchased a brake fluid tester item number 1149619069–4219427. its just stop working defective only lasted a little over a month

So I was debating doing a brake fluid flush becausey fluid is nasty looking and lots of travel in brakes. Bought this because I figured it was cheap and why not try it out. HOLY CRUD! So my brake fluid light this up like Christmas! All the lights light up indicating the fluid needs to be replaced immediately. Was still a little skeptical because my brake fluid wasn't too terribly old so I decided to check a bottle of DOT 3 brake fluid I had lying around that I opened about 3 1/2 years ago (I was thinking that the device was not working and it just said it was bad to get me to replace fluid) BUT NO! When I tested that old bottle that I kept the lid on tight for those years never opening again it came at as O.K. to use! So I went back and checked car againand it light right back up, so that confirms it in my mind that this thing WORKS! Love it! I even ran around the house testing random things to check the water content...........yes. it works. For $8......BUY IT!!!!!!!!