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The Klein Tools ET300AU is a digital circuit breaker finder that accurately identifies the correct breaker for 230V and 240V powered outlets. It uses micro-processor controlled technology to detect the correct circuit without needing to shut off power—ideal for live circuit testing in residential, commercial or industrial environments.
The bright green arrow and loud audible tone offer quick visual and audio confirmation, reducing testing time and error. With a transmitter range of up to 305 metres, the ET300AU supports large-site applications and fault tracing with ease.
(ET300AU)
The Klein Tools ET300AU is used to quickly identify the correct circuit breaker for a live power point or circuit without shutting power off.
Yes. It’s designed for 230V and 240V systems commonly used in Australian residential, commercial, and industrial installs.
Yes. It’s designed to work on powered circuits, which helps avoid unnecessary shutdowns during testing.
The receiver shows a bright green arrow and sounds a loud tone when the correct breaker is detected
Yes. With a signal range of up to 305 metres, it’s suitable for large homes, commercial buildings, and industrial sites.
Yes. Sparky Direct stocks the Klein Tools ET300AU with fast dispatch and fast Australia-wide delivery.
100-Day Fuss-Free Returns
We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.
If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.
All products come with a manufacturer’s or supplier’s warranty
Damaged or Faulty Goods
If your order arrives damaged or is faulty, let us know within 24 hours.
Contact us via our chat to arrange the return.
Exclusions
We can’t accept returns for:
How to Request a Return
Warranty starts from Invoice Date
Domestic Use: 1 Year
Commercial Use: 1 Year
Warranty Method: Return to Sparky Direct
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Klein Tools |
| SKU | ET300AU |
| Barcode # | 092644693076 |
| Package Weight | 0.286kg |
| Package Width | 0.037m |
| Package Height | 0.265m |
| Package Length | 0.160m |
| TYPE | VALUE |
|---|---|
| Type | Circuit Breaker Finder |
| Brand | Klein Tools |
| Overall Length | 152.4mm |
| Battery | 9V |
| Weight | 0.24kg |
| Voltage Range | 90-280V AC |
| Included | 1x 9V Transmitter Battery |
| Transmitter Range | 305m |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.
Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.
For website terms and conditions https://www.sparkydirect.com.au/terms-of-use
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YOUR ATTENTION PLEASE: Shipping is not available to for this product. Only order this product is you intend to pick it up locally. We will not ship this product to you if you order this. If you wish to cancel this order after ordering it you will be charged a 3.0% Refund Fee