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FLUKE

Voltage Detector, 5 In. L, 90 to 1000VAC

  • Item # 2KU25
  • Mfr. Model # Fluke-1AC-A1-II
  • Catalog Page # 562
  • UNSPSC # 41113637
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  • Shipping Weight 0.15 lbs.
Country of Origin China Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

REBATE AVAILABLE – Click “View More” below for details

This product is eligible for a manufacturer rebate through April 30th, 2017.


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The easy-to-use, pocket-size Fluke® 1AC-II VoltAlert™ noncontact AC voltage detector helps quickly check for energized circuits and defective grounds. Touch it to an outlet, terminal strip, or cord, and if voltage is in the line the tip glows red and a beeper sounds. (The beep can be turned Off if you prefer quieter testing.)
The instrument has built-in battery and circuit self-test and an On/Off switch to help extend battery life.

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Technical Specs

  • Item Voltage Detector
  • Voltage Range 90 to 1000VAC
  • Indication Audible/Visual
  • Audible Alert Yes
  • Battery Type AAA
  • Safety Rating CAT IV 1000V
  • On/Off Switch Yes
  • Length 5"
  • Switch Type Push Button
  • Special Features Continually Tests Battery, Circuit Integrity with A Periodic Double Flash Visual Indication
  • Operating Temp. 14 Degrees to 122 Degrees F
  • Includes (2) AAA Batteries, Instructions
  • Manufacturers Warranty Length 2 yr.
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Compliance and Restrictions

  • This item is restricted for international sale.

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Customer Reviews


Voltage Detector,5 In. L,90 to 1000VAC is rated 4.0 out of 5 by 28.
Rated 5 out of 5 by from Excellent voltage tester I bought one of these and it has come in handy now almost daily works great i would suggest it to everyone, a second one would sure come in handy to have as a spare.
Date published: 2016-12-18
Rated 5 out of 5 by from Everyone should have one The experience I've had with this product had been very positive over the many years I have used it. (Industrial Electrician) You just have to treat it with care and use it properly. That means checking it before using it each and every time. That is how I discovered the batteries in mine leaked and ruined the printed circuit board inside. As a result of mess it made, I will now check each one of my battery powered devices and install fresh new batteries, recording the battery warranty date on the outside of the instrument so this doesn't happen again.
Date published: 2016-12-08
Rated 5 out of 5 by from Quick and easy I own two different Fluke digital multi-meters, but I bought this product to do quick go/no-go testing on receptacle circuits and lighting branches when I work in office buildings. The VoltAlert is quick and easy to use, reliable, and allows me to instantly verify good or bad branch circuits as easily as pulling a pen out of my shirt pocket.
Date published: 2016-12-08
Rated 5 out of 5 by from Great tester I purchased this as my last one was lost or stolen from my tool bag. I like the new features. They have added a constant battery check (voltbeat) is what they call it so you know the tester is on and working. It also has an auto off so your battery lasts longer. I also like the audible and its not round anymore so it doesn't roll when you put it down. great value and durable.
Date published: 2016-12-08
Rated 4 out of 5 by from Great product Have had this tester for over 4 years now. Changed batteries only once or twice. Compared to other testers I have bought and stopped using, this one has given me less false warnings of voltage that isn't present. For a tool that provides safety, that is a must.
Date published: 2016-12-07
Rated 5 out of 5 by from Great tool I recently purchased my second one after the first died after 8+ years of constant use. I have friends that use other types and the fluke is more reliable and consistent. I would never buy another brand.
Date published: 2016-12-07
Rated 5 out of 5 by from Use Every Work Day Carry the VoltAlert in my shirt pocket every work day. Working as a licensed electrician I probably use it for testing circuits 10 times a day. The beep tone is a great feature to use when you want to find the circuit breaker for a particular receptacle. Just insert the VoltAlert into the receptacle, go to the panel and start flipping the breakers. When the beep stops you have found your breaker. Also, a great tool for fixing Christmas lights.
Date published: 2016-12-07
Rated 5 out of 5 by from Awesome! Bought this over a year ago, works great. I do a lot of unknown live work and it has never failed me. The audio alert when it goes into auto shut off is really helpful. Over a year and havent replaced a battery in it yet. Very pleased.
Date published: 2016-12-07
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