Fluke 1AC II Non-Contact VoltAlert Tester

Fluke 1AC II Non-Contact Voltage Tester is rated 4.3 out of 5 by 22.
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  • 1AC II Voltage Tester
  • 1AC II Non-Contact Voltage Testing

Key features

Fluke 1AC II is an easy to use VoltAlert tester that you can use anywhere: the perfect tool for electricians.

  • Fast answers available anywhere: the tip glows red and a beeper sounds when voltage is detected
  • Continuous self-test so you always know it’s working
  • Voltage detection range for wide application use - 90 V to 1000 V AC or 200 V to 1000 V AC
  • Volt stick with Audible/Silent mode for added convenience

Product overview: Fluke 1AC II Non-Contact VoltAlert Tester

The pocket-sized VoltAlert tester

The portable 1AC II non-contact voltage tester from Fluke is easy to use – just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know there's voltage present. This tool is the perfect non-contact voltage tester for electricians, maintenance, service, safety personnel, and homeowners. They can quickly test for energized circuits in the workplace or at home and even detect miswires of an electrical outlet.

The tip glows red and a beeper sounds when voltage is detected

  • A loud, easy to hear beeper will sound and the tip will glow red when voltage is detected
  • Optionally, the beeper can be disabled for use in quiet environments

Continuous self-test so you always know it’s working

  • When the tip blinks red you know it’s working properly
  • Provides a continual visual indication that the 1AC II VoltAlert is on

90 V to 1000 V AC or 200 V to 1000 V AC voltage detection range for wide application use

  • Wide voltage detection range allows for use in a broad range of applications
  • Also available in a low voltage model from 20 V to 90 V AC for controls circuits

Safety features

  • Rated to CAT IV 1000 V for added protection
  • CE and CSA approved

Additional tool features

  • Audible/Silent mode for added convenience in quiet environments
  • On/Off button
  • Batteries included
  • 2 year warranty

Specifications: Fluke 1AC II Non-Contact VoltAlert Tester

Operating PrinciplesSenses the steady state electrostatic field produced by AC voltage through insulation without requiring contact to the bare conductor. A red glow at the tip and a beeping noise (if not switched OFF) indicates the presence of voltage.
Voltage sensing rangesNominally, 90 V AC to 1000 V AC
Detector tip styleFlat-tip
Light sourceOne high intensity red LED
Agency Approvals
SafetyIEC 61010-1: Pollution Degree 2, IEC 61010-2-030: CAT IV 1000 V
EMCIEC 61326-1: Portable
IP RatingIP 40
Operating Temperature-10°C to 50°C (-14°F to 122°F)
Operating Humidity Ranges0% to 95% (0°C to 30°C)
0% to 75% (30°C to 40°C)
0% to 45% (40 to 55°C)
Operating Altitude3000 m
CleaningClean with damp cloth
Batteries2 AAA alkaline batteries included
Battery LifeTypical battery life of greater than 1 year
Warranty PeriodTwo years
Product does not respond to random electrostatic discharge.

Models: Fluke 1AC II Non-Contact VoltAlert Tester

Fluke 1AC II

Fluke 1AC-II Non-Contact Voltage Tester

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Reviews: Fluke 1AC II Non-Contact VoltAlert Tester

Rated 2 out of 5 by from Unreliable Audible beep failed, batteries were new and tested 2× 1.5 volt
Date published: 2021-07-03
Rated 5 out of 5 by from Respect the Fluke! :) I trust this product (voltage tester). Solid product.
Date published: 2020-12-31
Rated 4 out of 5 by from Great until it stopped working I have had this unit for a good few years and it has always worked really well. Just this week, it stopped. Oddly, new batteries got the light flashing again, but it still does not detect live current at all now! Slightly worrying! I have decided to buy another one; we'll see how that one goes.
Date published: 2019-10-12
Rated 2 out of 5 by from nice tool. batteries are always dead. now when I put new ones in all it does is beep constantly. this is my second and last one. there are other brands out there to consider. just out of the warranty by 2 months. store wont replace it
Date published: 2019-09-20
Rated 5 out of 5 by from Reliable after 4 years I've had this tester for 4 years and have tried to take good care of it. I use it within its designed purpose and it hasn't failed me yet with false negatives like other testers may. Finally a few months ago the clilp broke on it in the winter, I believe because it became brittle from the cold. Other reviewers mention the tip breaking off. I have been careful of this but I have seen others with the same tester have it happen. I won't use a different tester though, this one is in my opinion the best, functionally.
Date published: 2019-05-04
Rated 2 out of 5 by from Not a Non- Contact! This works perfectly fine with direct contact but unreliable with non-contact. I got shocked changing a garbage disposal switch because it was placed against the wire insulation and not the switch screws (which all of the cheaper brands I've owned was more than close enough) and gave me a false negative reading even though I had the wrong breaker off due to incorrect labeling in the panel. Fluke volt and multimeters are the best of the best but just a warning this needs direct contact for accuracy.
Date published: 2019-04-26
Rated 3 out of 5 by from Not for everyday pocket carry I have had this voltage tester for 3 months, and it has functioned properly the entire time. No battery replacement was need from occasional daily use during this period. It recently failed due to the tip breaking off in my pocket. This is not an every day carry item for the pocket
Date published: 2019-03-21
Rated 3 out of 5 by from Great tester, needs better "dropability" I've been using this kind of pen tester for years and really is the only one I ever want to buy. However, recently when I dropped my tester, it got stuck in a weird setting where it beeps non-stop, making me not have any faith in the tester anymore. I need to be sure my equipment, especially my voltage detector is up to par. My only solution now is to buy a brand new one. I took off 2 stars, just for the fact that my tester malfunctioned because it was dropped. These testers need to have a better dropability, especially if its only from a height of 5 feet!
Date published: 2019-03-07
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