---
product_id: 544052371
title: "NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen"
brand: "aicevoos"
price: "R$394"
currency: BRL
in_stock: true
reviews_count: 13
category: "Aicevoos"
url: https://www.desertcart.com.br/products/544052371-nf-brake-fluid-tester-with-sound-light-double-alarm-function
store_origin: BR
region: Brazil
---

# Dual sound & light alarm system Universal DOT3/4/5.1 compatibility Fast, instant moisture detection NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen

**Brand:** aicevoos
**Price:** R$394
**Availability:** ✅ In Stock

## Summary

> 🚦 Stay ahead of brake failure—test smarter, drive safer!

## Quick Answers

- **What is this?** NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen by aicevoos
- **How much does it cost?** R$394 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/544052371-nf-brake-fluid-tester-with-sound-light-double-alarm-function)

## Best For

- aicevoos enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Travel-Ready:** Lightweight 70g design fits in your glovebox or toolkit for on-the-go peace of mind.
- • **Save Money & Stay Safe:** Avoid unnecessary brake fluid changes and costly repairs with accurate, real-time data.
- • **Universal Fluid Compatibility:** Tests DOT3, DOT4, DOT5.1 & synthetic brake fluids effortlessly.
- • **Precision Moisture Measurement:** Highly sensitive probe detects moisture % to prevent costly brake failures.
- • **Instant Alerts with Sound & Light:** Triple-color backlight plus buzzer warns you before brake fluid risks safety.

## Overview

The Aicevoos NF Brake Fluid Tester is a compact, battery-free pen designed for quick, precise testing of DOT3, DOT4, and DOT5.1 brake fluids. Featuring a triple-color backlight and dual sound alarm, it instantly alerts you to moisture contamination levels, helping you avoid costly brake fluid replacements and maintain vehicle safety with professional-grade accuracy.

## Description

Aicevoos NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen : desertcart.co.uk: Automotive

Review: Works well and simple to use - Works well and simple to use... This may save you a good deal of money in the long run.
Review: superb fluid test tool with measurement readout that informs - It's ideal tool to explain whether you need to spend your money on a brake fluid change, coat £15 and saved me a £90 fluid change. the only reason you change brake fluid oils is either particle contamination, which cannot happen in most cars under 7 years old, or water moisture absorption which builds up over time. so this device tells you the specific percentage moisture level with enough accuracy to be meaningful. Great way to make decisions and save money with risking any safety issues

## Features

- ➤ WIDE RANGE OF APPLICATIONS - The car brake fluid tester is a universal device for most vehicles. It can test the condition of DOT-3, DOT-4, DOT-5.1 brake fluids as well as most synthetic brake fluids. It is extremely easy for personal use and is widely used in private workshops, repair shops and car dealerships.
- ➤ EASY TO USE - The test process is fast and efficient and has a simple control panel. The backlight glows green at 0%-2% data (brake fluid is ready to use). At 2%-3%, the backlight will turn yellow and the buzzer will sound slowly (brake fluid must be changed). The backlight is red and the buzzer sounds quickly when the data is greater than 3% (brake fluid must be changed immediately).
- ➤ EASY TO READ - Highly sensitive probe + acoustic alarm, instant display of results, large screen with three-colour backlight, easy to read the measurement results, whether day or night.
- ➤ FAST DETECTION - the detection process is fast and efficient, the control panel is simple and easy to use. Can quickly determine if the brake fluid needs to be replaced after the backlight reminder.
- ➤ EASY TO CARRY - The Brake Fluid Tester is well structured, compact and comfortable to hold. You can take it with you when travelling without taking up too much space.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C1SFRRGB |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 6,726 in Automotive ( See Top 100 in Automotive ) 39 in Brake Tools |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,072) |
| Date First Available | 8 April 2023 |
| Item Weight | 70 g |
| Manufacturer | Aicevoos |
| Manufacturer reference | AS-NF |
| Package Dimensions | 18.5 x 4.5 x 2.9 cm; 70 g |
| Part number | AS-NF |
| Style | Compact |

## Images

![NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen - Image 1](https://m.media-amazon.com/images/I/31aimpAcjhL.jpg)
![NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen - Image 2](https://m.media-amazon.com/images/I/41FK1BkWZyL.jpg)
![NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen - Image 3](https://m.media-amazon.com/images/I/41T8tRVq2YL.jpg)
![NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen - Image 4](https://m.media-amazon.com/images/I/41U53K3oBgL.jpg)
![NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen - Image 5](https://m.media-amazon.com/images/I/41wz+o54RlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well and simple to use
*by M***S on 1 May 2025*

Works well and simple to use... This may save you a good deal of money in the long run.

### ⭐⭐⭐⭐⭐ superb fluid test tool with measurement readout that informs
*by D***V on 5 June 2024*

It's ideal tool to explain whether you need to spend your money on a brake fluid change, coat £15 and saved me a £90 fluid change. the only reason you change brake fluid oils is either particle contamination, which cannot happen in most cars under 7 years old, or water moisture absorption which builds up over time. so this device tells you the specific percentage moisture level with enough accuracy to be meaningful. Great way to make decisions and save money with risking any safety issues

### ⭐⭐⭐⭐⭐ Good product
*by R***D on 14 January 2025*

Quality is really good. Accurate result everytime. Very handy when you service your car by yourself. I do not mind paying more to get a better product.

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**Shop now:** [https://www.desertcart.com.br/products/544052371-nf-brake-fluid-tester-with-sound-light-double-alarm-function](https://www.desertcart.com.br/products/544052371-nf-brake-fluid-tester-with-sound-light-double-alarm-function)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-22*