---
product_id: 655029440
title: "KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1"
brand: "kaiweets"
price: "KSh7337"
currency: KES
in_stock: true
reviews_count: 8
category: "Kaiweets"
url: https://www.desertcart.co.ke/products/655029440-kaiweets-brake-fluid-tester-pen-with-corrosion-resistance-probe-high
store_origin: KE
region: Kenya
---

# 3-color backlight alert system 2x AAA battery powered ±0.3% precision accuracy KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1

**Brand:** kaiweets
**Price:** KSh7337
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1 by kaiweets
- **How much does it cost?** KSh7337 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/655029440-kaiweets-brake-fluid-tester-pen-with-corrosion-resistance-probe-high)

## Best For

- kaiweets enthusiasts

## Why This Product

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

## Key Features

- • **Precision You Can Trust:** High-accuracy moisture detection within ±0.3% ensures your brake fluid is always in peak condition.
- • **User-Friendly Data Hold:** Capture and review readings effortlessly with the convenient data hold function—no guesswork needed.
- • **Compact & Ready Anywhere:** Lightweight, portable design powered by common AAA batteries, perfect for pros and DIYers on the go.
- • **Instant Alerts for Safety:** 3-color backlight and buzzer alarm notify you immediately when brake fluid moisture exceeds safe limits.
- • **Corrosion-Resistant Durability:** Built with a corrosion-resistant probe for long-lasting, reliable performance even under frequent use.

## Overview

The KAIWEETS Brake Fluid Tester Pen offers professional-grade precision with ±0.3% accuracy and a corrosion-resistant probe, calibrated for DOT3, DOT4, and DOT5.1 fluids. Featuring a buzzer alarm and 3-color backlight, it instantly alerts users when moisture levels exceed 3%, ensuring optimal brake safety. Compact and battery-powered, it’s designed for both mechanics and DIY enthusiasts seeking fast, reliable brake fluid maintenance.

## Description

Buy KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1: Brake Fluid Level - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Handy - This is a quality tool that’s easy to use and works well.
Review: Must have tool! - This is a must have tool if you are available DIYer or a pro! Honestly I was a little skeptical. So I used the tester on both of my cars: one that recently had the brake fluid replaced and another that had no brake fluid replaced for several years. The tester really works!

## Features

- Durable and Corrosion-Resistant : Featuring a corrosion-resistant probe, this brake fluid tester is designed for long-lasting performance. The durable construction ensures that the tool remains effective over time, even with frequent use, making it a reliable addition to your maintenance toolkit
- Fast and Accurate Measurements : This brake system sensor ensures quick and precise readings with an accuracy of ± 0.3%, covering a range of 0% - 4%. Whether you're checking DOT3, DOT4, or DOT5.1 fluids, this device offers reliable results, helping you easily maintain optimal brake performance
- Convenient Features : The brake fluid level sensor includes a data hold function, allowing you to capture and review readings easily. It also features a three-color backlight and buzzer alarm function, which will sound an alarm to remind you to change the brake fluid immediately when the humidity level exceeds the safety limit of 3%, providing additional convenience and safety
- Convenient Power and Operation : With its compact design, this brake fluid tester is easy to carry and store. It operates on 2x1.5V AAA batteries and functions well within a temperature range of 0-40°C. Its user-friendly design and quick measurement capabilities make it an essential tool for both professional mechanics and DIY enthusiasts
- Customer Service : KAIWEETS Provides a 30-day free return and a 3-year warranty for each product. Lifetime technical support, if you have any questions, please feel free to contact us. Enjoy faster and more efficient measurements with this brake fluid tester. Allowing you to promptly address any issues and ensure your vehicle’s braking system is always in top condition

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9M279V9 |
| Batteries | 2 AAA batteries required. (included) |
| Best Sellers Rank | #3,874 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Brake Fluid Level Sensors |
| Brand | KAIWEETS |
| Date First Available | July 17, 2024 |
| Item Weight | 4.2 ounces |
| Item dimensions L x W x H | 9.92 x 2.56 x 1.57 inches |
| Item model number | KVBF01 |
| Lower Temperature Rating | 32 Degrees Fahrenheit |
| Manufacturer | KAIWEETS |
| Material | Polypropylene |
| Measurement Accuracy | ±0.3% |
| Measuring Range | 0% - 4% |
| Output Type | Analog |
| Product Dimensions | 9.92 x 2.56 x 1.57 inches |
| Upper Temperature Rating | 40 Degrees Celsius |

## Product Details

- **Brand:** KAIWEETS
- **Item dimensions L x W x H:** 9.92 x 2.56 x 1.57 inches
- **Lower Temperature Rating:** 32 Degrees Fahrenheit
- **Material:** Polypropylene
- **Measurement Accuracy:** ±0.3%

## Images

![KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1 - Image 1](https://m.media-amazon.com/images/I/71cQgnW2REL.jpg)

## Available Options

This product comes in different **Color, Size, Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Handy
*by M***B on January 4, 2026*

This is a quality tool that’s easy to use and works well.

### ⭐⭐⭐⭐⭐ Must have tool!
*by G***N on February 1, 2026*

This is a must have tool if you are available DIYer or a pro! Honestly I was a little skeptical. So I used the tester on both of my cars: one that recently had the brake fluid replaced and another that had no brake fluid replaced for several years. The tester really works!

### ⭐⭐⭐⭐⭐ Great little brake fluid tester. 10/10
*by R***N on January 26, 2026*

Tests great. Very convenient. And it’s accurate.

## Frequently Bought Together

- KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1
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**Shop now:** [https://www.desertcart.co.ke/products/655029440-kaiweets-brake-fluid-tester-pen-with-corrosion-resistance-probe-high](https://www.desertcart.co.ke/products/655029440-kaiweets-brake-fluid-tester-pen-with-corrosion-resistance-probe-high)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-10*