---
product_id: 655029440
title: "KAIWEETS Brake Fluid Tester, Digital Moisture Tester for DOT3 DOT4 DOT5.1"
brand: "kaiweets"
price: "245 Lei"
currency: RON
in_stock: true
category: "Kaiweets"
url: https://www.desertcart.ro/products/655029440-kaiweets-brake-fluid-tester-digital-moisture-tester-for-dot3-dot4
store_origin: RO
region: Romania
---

# ±0.3% precision 3-color backlight alerts buzzer alarm at 3% moisture KAIWEETS Brake Fluid Tester, Digital Moisture Tester for DOT3 DOT4 DOT5.1

**Brand:** kaiweets
**Price:** 245 Lei
**Availability:** ✅ In Stock

## Summary

> 🚗 Stop guessing, start knowing—brake fluid safety in your pocket!

## Quick Answers

- **What is this?** KAIWEETS Brake Fluid Tester, Digital Moisture Tester for DOT3 DOT4 DOT5.1 by kaiweets
- **How much does it cost?** 245 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/655029440-kaiweets-brake-fluid-tester-digital-moisture-tester-for-dot3-dot4)

## 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

- • **Built to Last:** Corrosion-resistant probe and durable polypropylene body ensure reliable performance through countless tests.
- • **Effortless Data Capture:** Data hold function lets you freeze readings for easy review—perfect for busy pros and meticulous DIYers alike.
- • **Precision You Can Trust:** Get ultra-accurate brake fluid moisture readings with ±0.3% accuracy—never second guess your safety.
- • **Compact & Ready Anywhere:** Lightweight, battery-powered design fits in your toolkit or glovebox—professional-grade testing on the go.
- • **Instant Alerts for Safety:** 3-color backlight and buzzer alarm instantly notify you when brake fluid moisture exceeds safe limits—stay ahead of brake failure.

## Overview

The KAIWEETS Brake Fluid Tester Pen offers professional-grade, high-precision moisture detection for DOT3, DOT4, and DOT5.1 brake fluids. Featuring a corrosion-resistant probe, ±0.3% accuracy, and a 0-4% measurement range, it provides instant visual and audible alerts with a 3-color backlight and buzzer alarm when moisture exceeds 3%. Compact and battery-powered, it includes a data hold function for easy reading retention, making it an essential tool for mechanics and car enthusiasts committed to optimal brake performance and safety.

## Description

Buy KAIWEETS Brake Fluid Tester, Digital Moisture Tester for DOT3 DOT4 DOT5.1 | Corrosion-resistant probe, Data hold, Audible alert, 3-color display, Instant diagnostics, Automotive maintenance: Brake Fluid Level - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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 |
| Best Sellers Rank | #3,965 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Brake Fluid Level Sensors |
| Brand Name | KAIWEETS |
| Customer Reviews | 4.6 4.6 out of 5 stars (654) |
| Included Components | 1*brake fluid tester 2*AAA battery |
| Item Dimensions | 9.92 x 2.56 x 1.57 inches |
| Item Highlight | Corrosion-resistant probe, Data hold, Audible alert, 3-color display, Instant diagnostics, Automotive maintenance |
| Item Weight | 40 g |
| Manufacturer | KAIWEETS |
| Material Type | Polypropylene |
| Maximum Supply Voltage | 3 volts_of_direct_current |
| Measurement Accuracy | ±0.3% |
| Measuring Range | 0% - 4% |
| Model | KVBF01 |
| Number of Items | 1 |
| Output Type | Digital |
| Part Number | KVBF01 |
| Style Name | Modern |
| Upper Temperature Rating | 40 °C |

## Product Details

- **Brand:** KAIWEETS
- **Item Weight:** 40 g
- **Item dimensions L x W x H:** 9.92 x 2.56 x 1.57 inches
- **Material:** Polypropylene
- **Style:** Modern

## Images

![KAIWEETS Brake Fluid Tester, Digital Moisture Tester 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.

## 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
- Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips (15 foil wrapped test strips), 1 Pack
- ITEQ Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid

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**Shop now:** [https://www.desertcart.ro/products/655029440-kaiweets-brake-fluid-tester-digital-moisture-tester-for-dot3-dot4](https://www.desertcart.ro/products/655029440-kaiweets-brake-fluid-tester-digital-moisture-tester-for-dot3-dot4)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-11-05*