---
product_id: 255000156
title: "OTC 3633 Mini-Coil Cord Circuit Tester, Red"
brand: "otc"
price: "€ 115.46"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/255000156-otc-3633-mini-coil-cord-circuit-tester-red
store_origin: NL
region: Netherlands
---

# 12ft coiled cord 12V power compatibility Precision needlepoint probe OTC 3633 Mini-Coil Cord Circuit Tester, Red

**Brand:** otc
**Price:** € 115.46
**Availability:** ✅ In Stock

## Summary

> 🔧 Get wired for success with the OTC 3633!

## Quick Answers

- **What is this?** OTC 3633 Mini-Coil Cord Circuit Tester, Red by otc
- **How much does it cost?** € 115.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/255000156-otc-3633-mini-coil-cord-circuit-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

- • **📏 Ergonomic Design:** Slim handle and coiled cord ensure comfort and ease of use during long testing sessions.
- • **🔋 Dual Voltage Capability:** Perfectly compatible with both 6V and 12V systems for versatile applications.
- • **💡 Bright & Bold Visibility:** Equipped with a high-intensity replaceable bulb for clear readings in any environment.
- • **🛠️ Versatile Probing Options:** Includes a threaded probe with a screw-on alligator clip for enhanced functionality.
- • **🔧 Effortless Electrical Testing:** Easily locate shorts, grounds, and open circuits with this user-friendly tool.

## Overview

The OTC 3633 Mini-Coil Cord Circuit Tester is a reliable and efficient tool designed for electrical system testing. With its 12-foot heavy-duty coiled cord, ergonomic design, and high-intensity bulb, it simplifies the process of locating shorts, grounds, and open circuits in both 6V and 12V systems. The stainless steel needlepoint probe and alligator clip add versatility, making it an essential tool for professionals.

## Description

Full description not available

## Features

- The standard in electrical system testing - this basic and simple to use tester provides the capability to locate shorts, grounds, and open circuits
- Needlepoint stainless steel probe allows easy back probing and piercing; special threaded probe comes with screw on alligator clip for additional versatility
- Bright red, high intensity /slim style replaceable bulb
- 12 foot long, red, heavy-duty coiled cord lead; ergonomic, slim design clear handle
- For use with 6 volt and 12 volt systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | OTC |
| Brand | OTC |
| Product Dimensions | 7.24 x 21.72 x 4.32 cm; 1 g |
| Item model number | 3633 |
| Manufacturer Part Number | 3633 |
| OEM Part Number | 3633 |
| Voltage | 12 Volts |
| Item Weight | 1 g |

## Product Details

- **Brand:** OTC
- **Power source:** Corded Electric
- **Style:** Modern
- **Colour:** Red
- **Item weight:** 1 Grams

## Images

![OTC 3633 Mini-Coil Cord Circuit Tester, Red - Image 1](https://m.media-amazon.com/images/I/71T1O9wV-OL.jpg)
![OTC 3633 Mini-Coil Cord Circuit Tester, Red - Image 2](https://m.media-amazon.com/images/I/61h-R0nhd5L.jpg)
![OTC 3633 Mini-Coil Cord Circuit Tester, Red - Image 3](https://m.media-amazon.com/images/I/41XqTOroZuL.jpg)

## Questions & Answers

**Q: how many amps does this pull on a 12v system?**
A: Mine, with the factory installed bulb draws 157mA @ 13.1V... which comes to dash over 2W all said & done.

**Q: can it be used on  24 V AC circuit's**
A: No it can't but the OTC 3642 will do 24v systems but I'm not sure about ac current though

**Q: Is this item computer safe?**
A: Pulls, at peak, less than half an amp and 50 mA continuous. Use inline when circuit integrity testing and is very safe and useful when applied properly. Great for 5volt reference circuits. And yes this is the model ScannerDanner uses in 80% of his 1000+ videos.

**Q: I need to replace the fuse in my tester, I have 12v fuses just wanted to know what amp fuse is used.**
A: They are 1.5v bulbs, not fuses.... low amp consumption.  Otc sell them on Amazon. Do not use a fuse.

## Frequently Bought Together

- OTC 3633 Mini-Coil Cord Circuit Tester , Red
- OTC 3633-10 Replacement Bulb, (Pack of 10)
- OTC 3642 Truck Electrical Circuit Tester - 12V-24V with 24 Foot Cord,Red

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**Shop now:** [https://www.desertcart.nl/products/255000156-otc-3633-mini-coil-cord-circuit-tester-red](https://www.desertcart.nl/products/255000156-otc-3633-mini-coil-cord-circuit-tester-red)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-21*