---
product_id: 581095786
title: "Azonee Brake Fluid Tester Pen, Automotive Brake Fluid Content Detector, Vehicle Brake Diagnostic Testing Tool, Hydraulic Fluid Liquid Tester Pen Oil Moisture Tester Analyzer Meter for DOT3 DOT4 DOT5.1"
brand: "azonee"
price: "10389 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/581095786-azonee-brake-fluid-tester-pen-automotive-brake-fluid-content-detector
store_origin: HU
region: Hungary
---

# 0-4% moisture detection with ±0.3% accuracy Dual audible & tri-color visual alarm 3 oil types DOT3/DOT4/DOT5.1 detection Azonee Brake Fluid Tester Pen, Automotive Brake Fluid Content Detector, Vehicle Brake Diagnostic Testing Tool, Hydraulic Fluid Liquid Tester Pen Oil Moisture Tester Analyzer Meter for DOT3 DOT4 DOT5.1

**Brand:** azonee
**Price:** 10389 Ft
**Availability:** ✅ In Stock

## Summary

> 🚗 Stay ahead of brake failures with precision you can trust!

## Quick Answers

- **What is this?** Azonee Brake Fluid Tester Pen, Automotive Brake Fluid Content Detector, Vehicle Brake Diagnostic Testing Tool, Hydraulic Fluid Liquid Tester Pen Oil Moisture Tester Analyzer Meter for DOT3 DOT4 DOT5.1 by azonee
- **How much does it cost?** 10389 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/581095786-azonee-brake-fluid-tester-pen-automotive-brake-fluid-content-detector)

## Best For

- azonee enthusiasts

## Why This Product

- Trusted azonee brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Dual Alerts:** Visual tri-color backlight and buzzer alarms keep you instantly informed of brake fluid health.
- • **Long-Term Durability:** Rust-resistant metal probe and energy-saving tech built for consistent, hassle-free use.
- • **User-Friendly & Portable:** Pen clip design with auto shut-off and easy oil type switching for on-the-go diagnostics.
- • **Precision Moisture Metering:** High-accuracy probe delivers reliable water content readings from 0% to 4%, ensuring safety.
- • **Triple Oil Type Compatibility:** Seamlessly test DOT3, DOT4, and DOT5.1 brake fluids for every vehicle need.

## Overview

The Azonee Brake Fluid Tester Pen is a compact, high-precision diagnostic tool designed for professional and everyday drivers. It accurately detects moisture levels in DOT3, DOT4, and DOT5.1 brake fluids with ±0.3% accuracy, using a durable metal probe. Featuring tri-color backlight alerts and audible buzzers, it provides instant feedback on brake fluid condition, helping prevent costly brake failures. Its portable pen clip design, easy oil type switching, and auto power-off make it an essential, user-friendly tool for proactive vehicle maintenance.

## Description

Brake Fluid Tester Pen, Automotive Brake Fluid Content Detector, Vehicle Brake Diagnostic Testing Tool, Hydraulic Fluid Liquid Tester Pen Oil Moisture Tester Analyzer Meter for DOT3 DOT4 DOT5.1

## Features

- 【3 Oil Type Detection Brake Fluid Tester】This brake fluid tester can be used to detect brake oil DOT3, DOT4, DOT5.1. DOT3 is the most common type of brake fluid used by daily drivers and it is also the default brake oil type when the brake fluid tester power on; DOT4 has a higher boiling point and has found its place in racing vehicles and police cars. DOT5 mainly used in special vehicles such asracing cars, but rarely used in passenger cars.
- 【Accurate and Reliable】Our tester features an original high-accuracy probe made of excellent materials. This ensures precise and reliable measurements, giving you confidence in the results and helping you make informed decisions about your brake fluid maintenance.
- 【Sound & Light Dual Alarm】When the brake fluid tester detects the value is between 0~2%, the backlight turns green, which means the brake oil can still be used. When the value is tested between 2~3%, the backlight is yellow, and the buzzer buzzes slowly, please change the brake oil. When the detected value is above 3%，the backlight turns red, and the buzzer buzzes quickly, please change the brake oil immediately. Tips: please wipe the probe clean, otherwise it will affect the results.
- 【Easy to Use】This brake fluid tester is easy to use. 1. After install the batteries, gently remove the cap, hold on the power key for more than 1second. After the buzzer beeps, the screen lights on, and then choose the current oil type you want to test. 2. Insert the test probe into the brake fluid and immerse it in the liquid surface at most 2-5mm (please wipe the probe clean before or after using, otherwise it will affect the results). 3. Check the results through the display.
- 【Quick Distinguish Capability】The tester allows for quick and easy determination of the water content in the brake fluid; It provides readings ranging from 0% to 4%, representing different levels of water content; This allows car owners to promptly assess the condition of their brake fluid and determine if it meets the necessary specifications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Azonee |
| Product Dimensions | 18 x 5 x 5 cm; 80 g |
| Item Weight | 80 g |

## Images

![Azonee Brake Fluid Tester Pen, Automotive Brake Fluid Content Detector, Vehicle Brake Diagnostic Testing Tool, Hydraulic Fluid Liquid Tester Pen Oil Moisture Tester Analyzer Meter for DOT3 DOT4 DOT5.1 - Image 1](https://m.media-amazon.com/images/I/41fWL5TieVL.jpg)

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**Shop now:** [https://www.desertcart.hu/products/581095786-azonee-brake-fluid-tester-pen-automotive-brake-fluid-content-detector](https://www.desertcart.hu/products/581095786-azonee-brake-fluid-tester-pen-automotive-brake-fluid-content-detector)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-01-23*