---
product_id: 15394899
title: "OTC 3890 Brake Fluid Safety Meter"
brand: "otc"
price: "182374 som"
currency: KGS
in_stock: true
reviews_count: 5
url: https://www.desertcart.kg/products/15394899-otc-3890-brake-fluid-safety-meter
store_origin: KG
region: Kyrgyzstan
---

# Polarity protection Water detection Under 1 min test OTC 3890 Brake Fluid Safety Meter

**Brand:** otc
**Price:** 182374 som
**Availability:** ✅ In Stock

## Summary

> 🚗 Safety at Your Fingertips: Because Your Brakes Deserve the Best!

## Quick Answers

- **What is this?** OTC 3890 Brake Fluid Safety Meter by otc
- **How much does it cost?** 182374 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/15394899-otc-3890-brake-fluid-safety-meter)

## Best For

- otc enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Automatically prevents operation with incorrect polarity.
- • **Corrosion Prevention:** Detects water contamination to protect your system.
- • **No Consumables Needed:** Eco-friendly design with no test strips required.
- • **Universal Compatibility:** Works seamlessly with DOT 3, 4, and 5.1 fluids.
- • **Quick & Efficient Testing:** Check brake fluid condition in under a minute!

## Overview

The 3890 Brake Fluid Safety Meter is a cutting-edge tool designed to quickly assess the condition of your brake fluid in under a minute. It effectively detects water contamination, which can lead to corrosion and performance issues, ensuring your braking system remains safe and reliable. Compatible with DOT 3, 4, and 5.1 fluids, this device operates without the need for consumable test strips and features built-in polarity protection for added safety.

## Description

OTC 3890 Brake Fluid Safety Meter

## Features

- Check condition of brake fluid in less than a minute
- Water can cause corrosion in system components and can vaporize under the high heat conditions of hard braking situations
- Boils a small sample of brake fluid in the reservoir to test for water contamination
- Will not operate if connected to the wrong polarity
- Works on DOT 3 4 and 5.1 fluids and uses no consumable test strips

## Images

![OTC 3890 Brake Fluid Safety Meter - Image 1](https://m.media-amazon.com/images/I/71hplDZ4KaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Expensive, but works...
  

*by A***E on Reviewed in the United States on March 30, 2021*

Expensive, but works.  Numbers consistant with DOT 3 and 4 specs when new fluid is tested.  Instructions could be better.

### ⭐⭐⭐⭐⭐ 







  
  
    The power supply design is very good
  

*by K***N on Reviewed in the United States on June 29, 2019*

The power supply design is very good.avoid battery corrosion your instrument

### ⭐⭐⭐⭐ 







  
  
    Four Stars
  

*by A***R on Reviewed in the United States on March 25, 2015*

Great tester, uses no consumables, but one button control isn't very convinient.

---

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**Shop now:** [https://www.desertcart.kg/products/15394899-otc-3890-brake-fluid-safety-meter](https://www.desertcart.kg/products/15394899-otc-3890-brake-fluid-safety-meter)

---

*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-14*