---
product_id: 11003487
title: "Oudin Coil - 'Tesla Coil' w/Safety Switch"
brand: "educational innovations"
price: "HK$5414"
currency: HKD
in_stock: true
reviews_count: 5
category: "Educational Innovations"
url: https://www.desertcart.hk/products/11003487-oudin-coil-tesla-coil-w-safety-switch
store_origin: HK
region: Hong Kong
---

# 10k-50kV adjustable spark 0.5 MHz high frequency output Built-in safety momentary switch Oudin Coil - 'Tesla Coil' w/Safety Switch

**Brand:** educational innovations
**Price:** HK$5414
**Availability:** ✅ In Stock

## Summary

> ⚡ Spark your curiosity with Tesla-level power in the palm of your hand!

## Quick Answers

- **What is this?** Oudin Coil - 'Tesla Coil' w/Safety Switch by educational innovations
- **How much does it cost?** HK$5414 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/11003487-oudin-coil-tesla-coil-w-safety-switch)

## Best For

- educational innovations enthusiasts

## Why This Product

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

## Key Features

- • **Compact Spark Mastery:** Generates a precise 1-inch high-frequency spark with a 2-inch electrode, perfect for hands-on science exploration.
- • **Plug & Play Innovation:** Runs on standard 115V North American line current—no batteries, no fuss, just pure Tesla-inspired power.
- • **Ergonomic & Safe Design:** Heavy-duty Bakelite handle with an intuitive ON/OFF momentary switch ensures classroom-ready safety.
- • **High-Frequency Powerhouse:** Operates at a sharp 0.5 MHz frequency, delivering crisp, consistent sparks every time.
- • **Precision Voltage Control:** Adjust sparks from a subtle 10,000V to a jaw-dropping 50,000V for tailored experiments.

## Overview

The Oudin Coil is a handheld high-frequency spark generator delivering adjustable 10,000 to 50,000 volts at 0.5 MHz frequency. Encased in a durable Bakelite handle with a built-in safety momentary switch, it operates on standard 115V power and produces a 1-inch spark ideal for educational and experimental use. Designed for intermittent operation, it combines classic Tesla coil technology with modern safety and ergonomic features.

## Description

While more accurately called an Oudin Coil, these are commonly referred to as a hand-held 'Tesla Coil'. This coil is self-contained in a heavy duty Bakelite case which forms a convenient handle. The spark is adjustable from 10,000 to 50,000 volts at frequencies of approximately 1/2 megahertz. The high frequency spark produced is about 1 in. long and can be used for a wide array of applications. An instrument like this is intended for intermittent use only and must be turned off after 10 minutes of use. The electrode furnished is approximately 2 in. long and the instrument is furnished with an intensity adjusting knob. For 115v, 50/60 Hz. An improved SAFETY FEATURE is the ON/OFF momentary switch which is in the handle. This makes our Oudin Coil extra safe for classroom use. Runs on standard North American line current, 110 volts 60 Hz

Review: Tesla would be proud - Well made and very durable
Review: A costly but amazing product. - As someone who has no background in physics, I purchased this out of curiosity and an interest in Tesla's contributions. What I ended up with is a very well-constructed gizmo with possibilities beyond my present grasp. After a few interesting mishaps (mostly due to old wiring in my home and lack of operator experience), I managed to perform some fairly neat experiments. Things became even better when I purchased the "visualizer" offered by E.I.. The company's catalog has some additional products that will certainly make things more interesting when used with the coil.

## Features

- Like a hand-held Tesla Coil
- Related Items: HS-5A, PLS-100, VAN-200

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009P8CG8M |
| Batteries Required? | No |
| Best Sellers Rank | #437,262 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4,672 in Science Education Supplies |
| Brand | Educational Innovations |
| Color | Black |
| Date First Available | October 11, 2012 |
| Extended Length | 2 Inches |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.3 pounds |
| Manufacturer | Educational Innovations |
| Material | Metal |
| Operating Frequency | 60 Hz |
| Power Source | Corded Electric |
| search coil size | 2 Inches |

## Product Details

- **Batteries Required?:** No
- **Brand:** Educational Innovations
- **Color:** Black
- **Material:** Metal
- **Power Source:** Corded Electric

## Images

![Oudin Coil - 'Tesla Coil' w/Safety Switch - Image 1](https://m.media-amazon.com/images/I/316DbEZYGZL.jpg)
![Oudin Coil - 'Tesla Coil' w/Safety Switch - Image 2](https://m.media-amazon.com/images/I/51-loLpSd9L.jpg)

## Questions & Answers

**Q: Could this be used to kill termites, like the electro-gun?**
A: Don't know.  I hadn't heard of the electro gun until I received your question.  I'm just looking at stuff on the web about it.  They say it generates 90,000 volts.  The Oudin coil maxes at 50,000.  But any effects of it also depend on the current, and I don't know how that compares to electro gun.  The instructions warn not to run it for very long, I think a max of 10 minutes.  Maybe that's a consideration.  Now you've got me wanting to test the thing on the little bastards.

**Q: does this have variable frequency control**
A: No.  There's a variable voltage control (I think 20-50 kV).

**Q: are these  in stock and ready to ship ?**
A: Yes, these are currently in stock. Please keep in min that stock levels are constantly changing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tesla would be proud
*by Z***Z on September 21, 2025*

Well made and very durable

### ⭐⭐⭐⭐⭐ A costly but amazing product.
*by R***N on September 6, 2014*

As someone who has no background in physics, I purchased this out of curiosity and an interest in Tesla's contributions. What I ended up with is a very well-constructed gizmo with possibilities beyond my present grasp. After a few interesting mishaps (mostly due to old wiring in my home and lack of operator experience), I managed to perform some fairly neat experiments. Things became even better when I purchased the "visualizer" offered by E.I.. The company's catalog has some additional products that will certainly make things more interesting when used with the coil.

### ⭐⭐⭐⭐ TeslaCoilWithConicTip&Switch
*by P***N on April 23, 2015*

That's good product though only 40 Watts. Sometimes I need its 'safety switch' but I've two hands - so I've two of such coils with switch. I've more than two of such coils without switch - the previous design also 40 Watts. You've to be very careful & put them on separate circuit-breaker to not burn any electronic devices in home, like cable box - so I usually unplug or switch off any other electronic device which are usually connected in my home through 12 outlet-surge-protector ~4.2kJ.

## Frequently Bought Together

- Oudin Coil - 'Tesla Coil' w/Safety Switch
- Tesla Coil DIY Kit, PEMENOL Touchable Plasma Ball Spark Gap Arc Generator for Physics Teaching, Arc Plasma Artificial Lighting Science Experiment Model for College High School Education

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-31*