---
product_id: 271012318
title: "OTC 3631 Heavy-Duty Logic Probe Tester, Red"
brand: "otc"
price: "€ 103.10"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/271012318-otc-3631-heavy-duty-logic-probe-tester-red
store_origin: SK
region: Slovakia
---

# LED signal indicators 3-26V range Multi-functional testing OTC 3631 Heavy-Duty Logic Probe Tester, Red

**Brand:** otc
**Price:** € 103.10
**Availability:** ✅ In Stock

## Summary

> 🔍 Unleash the Power of Precision Testing!

## Quick Answers

- **What is this?** OTC 3631 Heavy-Duty Logic Probe Tester, Red by otc
- **How much does it cost?** € 103.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/271012318-otc-3631-heavy-duty-logic-probe-tester-red)

## 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

- • **Visual Clarity:** Bright red and green LEDs for easy interpretation of voltage signals.
- • **Precision Testing:** Multi-functional design for a voltage range of 3-26 volts.
- • **Professional Grade:** Designed for automotive professionals and DIY enthusiasts alike.
- • **Compact & Lightweight:** Weighs only 1 gram, making it easy to carry and use.
- • **Versatile Applications:** Tests fuel injectors, solenoids, and various sensor outputs.

## Overview

The OTC3631 Heavy-Duty Logic Probe Tester is a versatile tool designed for automotive professionals, allowing for precise testing of voltage signals ranging from 3-26 volts. With bright LED indicators and the ability to test various components, this lightweight device is essential for efficient diagnostics.

## Description

OTC 3631 Heavy-Duty Logic Probe Tester, Red

## Features

- Multi-functional design allows testing range of 3-26 volts
- Bright red and green LEDs interpret voltage signals such as ground power and frequency
- Tests fuel injectors solenoids presence of serial data and Tach reference signals
- Output tests on MAF cam crank hall effect VRS sensors and more

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | OTC |
| Brand | OTC |
| Product Dimensions | 5.59 x 34.54 x 5.08 cm; 1 Grams |
| Item model number | 3631 |
| Manufacturer Part Number | 3631 |
| Item Weight | 1 g |

## Product Details

- **Brand:** OTC
- **Power Source:** Battery Powered
- **Style:** Handheld
- **Color:** Red
- **Item Weight:** 1 Grams

## Images

![OTC 3631 Heavy-Duty Logic Probe Tester, Red - Image 1](https://m.media-amazon.com/images/I/71KjqNHLnVL.jpg)

## Frequently Bought Together

- OTC 3631 Heavy-Duty Logic Probe Tester , Red
- OTC 3634 Heavy-Duty Straight Cord Circuit Tester, Red
- OTC 3633 Mini-Coil Cord Circuit Tester , Red

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**Shop now:** [https://www.desertcart.sk/products/271012318-otc-3631-heavy-duty-logic-probe-tester-red](https://www.desertcart.sk/products/271012318-otc-3631-heavy-duty-logic-probe-tester-red)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-08*