Quick Summary
The ZKTOOL Upgraded Version Automotive Brake Fluid Tester Pen is a brake fluid moisture analyser for checking DOT3, DOT4, DOT5, ENV6 and ENV4 brake fluid. It uses five LED lights to show the proportion of water in the fluid with green, yellow and red indicators, and it is designed to give a quick reading in a few seconds.
Who It Is Best For
This is a practical tool for drivers, home mechanics, and garage users who want a simple way to check brake fluid condition without a long wait. It suits anyone who wants a compact tester that is easy to keep in the vehicle or workshop.
What To Know Before You Buy
The tester is described as easy to use and small enough to carry, which makes it convenient for regular checks. It also automatically shuts down after 12 seconds of no use to save battery power.
Pros
Quick to check, compact to carry, and uses clear LED indicators.
Cons
Requires 1 x AAA 1.5V battery, which is not included, so check you have the correct battery before use.
Common Buyer Questions
What brake fluid types can it test?
It is described as suitable for DOT3, DOT4, DOT5, ENV6 and ENV4 brake fluid.
How does it show the result?
Five LED lights indicate the water content using green, yellow and red colour signals.
Is it easy to carry?
Yes, it is described as small and convenient to carry.
Does it need batteries?
Yes, it requires 1 x AAA 1.5V battery, and the battery is not included.
Does it switch itself off?
Yes, it automatically shuts down after 12 seconds of no use.
Key Details
| Detail | What it means in use |
|---|---|
| Brand | ZKTOOL |
| Product type | Brake fluid tester pen |
| Model description | Upgraded Version, 5 in 1 Detector |
| Fluid types listed | DOT3, DOT4, DOT5, ENV6, ENV4 |
| LED indicator | Five LED lights show water content using green, yellow and red |
| Power requirement | Requires 1 x AAA 1.5V battery |
| Battery included | No |
| Auto shut off | Turns off after 12 seconds of no use |
| Body material | Nylon |
Final Buying View
If you want a compact brake fluid tester pen with clear LED readings and support for several listed brake fluid types, this ZKTOOL model is a straightforward choice. It is designed for quick checks, easy carrying, and simple everyday use. Just make sure you have the correct AAA battery ready before ordering.
