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The Klein Tools A-CL490 is a 400A AC/DC auto-ranging clamp meter with True RMS measurement and a secondary display for viewing from awkward angles. The A-CL490 reads AC and DC current, voltage, resistance, continuity, frequency, and capacitance, with diode testing and temperature measurement through a supplied thermocouple. It is rated CAT III 600V and carries non-contact voltage detection with audible and visual alerts.
Reading a meter inside a crowded switchboard usually means craning to see the screen, or pulling the meter out and losing the clamp position. The secondary display on the A-CL490 shows the reading from a second angle, so the measurement stays visible with the jaw still around the conductor. The backlit hi-vis display holds up in a dark riser cupboard or under a house.
Sparkies and HVAC techs carry a single meter that covers current, voltage, resistance, and temperature rather than swapping tools mid-diagnosis. True RMS measurement gives accurate readings on the non-linear loads that variable-speed drives and switch-mode supplies produce, where an averaging meter reads low. The 2 metre drop rating and auto-ranging operation suit a meter that lives in a tool bag and gets picked up mid-fault-find.
The A-CL490 is rated CAT III 600V and is not rated for CAT IV service-entrance work or measurement above 600V. Current measurement is capped at 400A, so it does not cover larger feeder and submain circuits. The jaw opening limits it to conductors that fit within 40mm.
(A-CL490)
It is used for measuring current, voltage and diagnosing electrical issues across a wide range of jobs.
You can read results from different angles without repositioning the meter, which helps in crowded boards.
Yes. It covers most common tests, so you don’t need multiple tools on site.
The True RMS function gives more reliable readings, especially on variable or non-linear loads.
Yes. The NCV function lets you detect voltage without direct contact.
Yes. Sparky Direct stocks the Klein Tools A-CL490 with fast dispatch and delivery across Australia.
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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
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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 | A-CL490 |
| Model # | CL490 |
| Barcode # | 092644694271 |
| Package Weight | 0.566kg |
| TYPE | VALUE |
|---|---|
| Brand | Klein Tools |
| Colour | Orange/Black |
| Rated Current (A) | 400A AC/DC |
| Height (mm) | 215 |
| Width (mm) | 38 |
| Depth (mm) | 90 |
| Power Source | 2 x AA batteries |
| Voltage (V) | 600 |
| Power Supply | 2 x AA Battery |
| Display | 4000 Count Backlit, Hi-Viz |
| Rated Voltage (V) | 600V AC/DC |
| Auto Ranging | Yes |
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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