Fluke 1AC-A1-II / 1LAC-A-II
Non-Contact Voltage Detectors

  • Fits in a shirt pocket for convenience
  • Choose a model to detect 20 - 90 Volts or 90 - 1000 Volts AC
    • Model 1AC-A1-II, 90 to 1000 VAC
    • Model 1LAC-A-II, 20 to 90 VAC
  • All outer surfaces are non-conductive for safety
  • Detects voltage without metallic contact
  • Quickly locates the hot, neutral and ground terminals in any receptacle. (1AC only)
  • 2 Year Warranty
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Fluke 1AC-A1-II Shown

Product Information
Instruction Sheet 194 KB PDF
1AC-A1-II Intro Video
PDF HelpPDF Help
Easy-To-Use Voltage Detectors

The VoltAlert™ ac voltage testers from Fluke are easy to use-just touch the tip to a terminal strip, outlet, or cord. When the tip glows red, you know there's voltage in the line. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits and defective grounds on the factory floor, in the shop, or at home.

Available in Two Voltage Ranges

The Volt Alert 1AC is for detecting line voltage from 90 to 1000 VAC.
The Volt Alert 1LAC is for detecting line voltage from 20 to 90 VAC.

Operating principle Senses 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 ranges Nominally, 90 to 1000 VAC (1AC)
20 to 90 VAC (1LAC,  control circuit model)
Detector tip style Blade or round, depending on model
Light source One high intensity red LED
Agency Approvals c CSA us, CE, TUV, C-Tick
Safety Rating 1000 V, CAT IV
IP Rating IP 40
Operating temperature -10 °C to 50 °C
Operating humidity ranges 0 % to 95 % (0 °C to 30 °C); 0 % to 75 % (30 °C to 40 °C); 0 % to 45 % (40 °C to 55 °C)
Operating Altitude 3000 meters
Ordering Information
Model Description Buy Online Price
Fluke 1AC II A1 Fluke 1AC-A1-II AC Voltage Detector Buy Now Sale $23.60
(Reg. $29.95)
Fluke 1AC II A1 5PK Fluke 1AC-A1-II-5PK 5 Pack of Volt Alert AC 90-1000V Detectors Buy Now Sale $108.25
(Reg. $129.95)
Fluke 1LAC II A Fluke 1LAC-A-II AC Low Voltage Detector Buy Now Sale $23.65
(Reg. $29.95)
Included Accessories
  • 2 - "AAA" alkaline batteries