---
product_id: 265528312
title: "OTC 3633 Mini-coil Cord Circuit Tester"
brand: "otc"
price: "$U10675"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/265528312-otc-3633-mini-coil-cord-circuit-tester
store_origin: UY
region: Uruguay
---

# Tests 6 & 12 volt systems 12 ft heavy-duty coil cord Threaded probe with alligator clip OTC 3633 Mini-coil Cord Circuit Tester

**Brand:** otc
**Price:** $U10675
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your diagnostics with precision and style!

## Quick Answers

- **What is this?** OTC 3633 Mini-coil Cord Circuit Tester by otc
- **How much does it cost?** $U10675 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/265528312-otc-3633-mini-coil-cord-circuit-tester)

## 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

- • **Extended Reach:** 12-foot heavy-duty red coil cord keeps you mobile and tangle-free in any workspace.
- • **Ergonomic & Durable:** Slim, clear handle designed for comfort and long-lasting professional use.
- • **Precision Back Probing:** Needlepoint stainless steel probe for effortless circuit piercing and pinpoint accuracy.
- • **Versatile Connectivity:** Special threaded probe screws on an alligator clip for hands-free testing flexibility.
- • **Dual Voltage Compatibility:** Seamlessly tests both 6V and 12V electrical systems, covering all your automotive needs.

## Overview

The OTC 3633 Mini-coil Cord Circuit Tester is a compact, ergonomic electrical testing tool designed for professionals. Featuring a needlepoint stainless steel probe and a threaded probe with an alligator clip, it offers versatile and precise circuit testing. Its 12-foot heavy-duty coil cord supports 6V and 12V systems, making it ideal for automotive diagnostics and troubleshooting shorts, grounds, and open circuits efficiently.

## Description

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. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it’s a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians’ productivity and shop profits.

## Features

- Small handle with needlepoint stainless steel probe allows easy back probing and piercing
- Special threaded probe comes with screw on alligator clip for additional versatility
- Useful in testing electrical circuits and locating shorts grounds and open circuits
- Features 12 feet heavy-duty red coil cord lead and checks 6 and 12 volt systems
- Dwell measurement and O2 cross counts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | OTC |
| Power Source | Corded Electric |
| Style | Ergonomic,Unique |
| Item Weight | 1 Grams |
| Item dimensions L x W x H | 7.2 x 21.7 x 4.3 Centimeters |
| Min. Operating Voltage | 6 Volts |
| Measurement Type | Voltage Tester |
| Maximum Operating Voltage | 12 Volts |
| UPC | 731413505751 521375009516 071020055936 031112405384 523161139902 012302908908 999992883251 |
| Manufacturer | OTC |
| Global Trade Identification Number | 00731413505751 |
| 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 |
| Material | As shown in the image |
| Assembly Required | No |
| Voltage | 12 Volts |
| Item Weight | 1 g |

## Product Details

- **Brand:** OTC
- **Power Source:** Corded Electric
- **Style:** Ergonomic,Unique
- **Item Weight:** 1 Grams
- **Item dimensions L x W x H:** 7.2 x 21.7 x 4.3 Centimeters

## Images

![OTC 3633 Mini-coil Cord Circuit Tester - Image 1](https://m.media-amazon.com/images/I/71T1O9wV-OL.jpg)
![OTC 3633 Mini-coil Cord Circuit Tester - Image 2](https://m.media-amazon.com/images/I/61h-R0nhd5L.jpg)
![OTC 3633 Mini-coil Cord Circuit Tester - 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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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-24*