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Troubleshooting Type
Signal Analyzers
Tool Type
Electrical Detectors
Voltage Detector
Ease of Installation
Beginner (Installs < 10 minutes)
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Non-Contact Voltage Detector Indicates AC Voltage Presence
Voltage Detector
Voltage Detector
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Voltage Detector Voltage Detector Voltage Detector
Voltage Detector
Item# 90503
Price: Normally $16.99 
Hot Deal $11.78
Free shipping on orders over $175 - See Details


  • Indicates the presence of AC voltage from 50 to 600 volts
  • Compact design fits in shirt pocket
  • Audible and visual indicators

Essential Info

If you're unsure if your outlets are pumping out power but want to save the time and expense of hiring a professional electrician, try the Circuit Alert™, a non-contact voltage detector that indicates the presence of AC voltage from 50 to 600 volts.

What's Included

  • Voltage probe
  • 2 button cell batteries
  • More Info

    Press the pocket clip and place the sensor on or near wires or devices. If AC voltage is present, the light will glow and the speaker will chirp continuously, providing both audible and visual assurance.

    Test outlets, system panels, or fuse boxes. The Voltage Detector even has a built-in "safe test" feature to assure that batteries are functioning properly. The Circuit Alert™ Voltage Detector runs on two button cell batteries, included.



    Gardner Bender Product No.:GVD-3504
    Dimensions:5 9/16" x 5/8" x 5/8"
    Voltage Range:50 to 600 volts (50 to 60 Hz)
    Approvals:CE/UL listed
    Warranty:5 years

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Garner-Bender, Tel: (800) 624-4320


    Voltage Detector  Voltage Detector  Voltage Detector   
    Voltage Detector  Voltage Detector  Voltage Detector   


    19 Ratings
    5 star: 53%  (10)
    4 star: 26%  (5)
    3 star: 5%  (1)
    2 star: 11%  (2)
    1 star: 5%  (1)
    Average Customer Rating
    (19 customer ratings)
    Share your thoughts with other customers
    JOSEPH -- forest hills, NY   7/7/2011
    Shipped quickly, works great.
    CAMERON -- thornton, CO   3/28/2011
    It works OK. I mean it will tell if you there is some voltage in a wire near by, but sometimes it seems overly sensitive meaning that it is hard to tell what is the line and what is neutral when it starts going off when I'm 1 foot away from any wires. Other times it works exactly as I would have expected (only when nearly touching the live wire). Can't beat the price though and most importantly it always did detect voltage (didn't miss).
    DARRELL -- delano, CA   2/10/2011
    Great quick asset for the tool box
    PATRICK -- elyria, OH   1/11/2011
    In my opinion every home should have one. Detect electricity without having to touch it. Description was off... mine uses 1 AAA battery (which is better than button batteries)
    BENJAMIN -- redmond, WA   6/24/2010
    This item is sweet.
    Jonathan -- east stroundburg, PA   1/5/2010
    I've just replaced the two button batteries in this product that I bought many years ago. I paid 10 bucks for two batteries at Radio Shack. Should have tried LR batteryBob! I love this little device! Has always worked well.
    LUKE -- beaverton, OR   11/7/2009
    This product is too sensitive! I need to test wires that are next to each other but because of the sensitivity I can't get close enough to determine which one has power!
    CARROLL C -- colorado springs, CO   5/22/2009
    This item worked well enough, we were able to trace hot wires. the only thing we found is it also appeared to detect studs in the walls. either that or our walls have many lines.
    STEVE -- houston, TX   3/8/2007
    It id exactyl waht I needed it to do. A good value.
    PATRIK -- deje, XX   11/22/2006
    Great Voltage Detector... This one is really sensitive also!!! You can detect power from a distans of about 0,5m. Which is great of course.
    Dick P -- shelburne, Vermont   11/15/2006
    Fantastic, now I can look forward to Christmas again! I hated putting up the Christmas lights to no end; try and find the bulb that is killing the whole string. Now with the voltage detector I can plug the light string in and trace down the line to where the voltaqe stops and bingo there is the bad light bulb. What a great tool! Thanks
    MICHAEL -- solgohachia, AR   1/23/2006
    did the job
    RYAN -- ft collins, CO   6/30/2005
    Works like a charm and the price was right.
    DAN -- macomb twp, MI   1/28/2005
    No problems...Ever !


    Replacement batteries  Installation Tools     
    Replacement batteries  Installation Tools     

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