NEXPEAK Brake Fluid MoistureTester Pen with 5 LED Indicators for DOT3/DOT4 Brake Fluid Car Diagnostic Testing Tool

This is very little money to spend for a tool that is really necessary for any adequate evaluation or maintenance of a car or truck. Highly recommended.

Broke on the first day. Light use, the device just shattered. Poor quality.

It was easy 2 operate and check brake fluid

Works like it should

This tester works fine, I even tested it with a sample of new brake fluid and a measured amount of water to see if was reasonably accurate and it was, certainly for the price. But, it is very aggravating because the door that covers the battery compartment does not latch firmly and is always falling off. I was even demonstrating it for a friend and the door popped off and fell into the brake fluid and had to be fished out. I solved the problem by putting a piece of tape over the door, but this is not right for an item that is 2 days old!

Low price, easy to use. I am not sure its accuracy. As when ever put the stick into the brake fluid reservoir, it reads as ok. And the fluid has not been changed for nearly 2 years. As did a test to put it into water, it immediately went highest. The most unsatisfied prospect would be after like 2 uses, the plastic seems to be corroded, and brake when remove the cap. I would definitely wish I could have a better quality tester.

Great tool for the price!

I used this one time. I then put it in my tool box and the next time I removed it the plastic was falling apart and the unit came apart. Construction is poor.