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Tool Type
Signal Detector
Ease of Installation
Beginner (Installs < 10 minutes)
KJB Security
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Find Out if Someone is Spying on You!
RF Signal Detector
RF Signal Detector
RF Signal Detector
Item# 7239
Price: Normally $89.99 
Hot Deal $50.60
Free shipping on orders over $175 - See Details


  • Sleep easy at night knowing that there's no hidden cameras or bugs in the room
  • Small enough to take anywhere, like hotels rooms, fitting rooms, etc.
  • Detects virtually all wireless cameras, listening devices and active cell phones

Essential Info

Worried that someone may be using wireless hidden cameras, remote listening devices or other wireless surveillance equipment to spy on you? Then put those fears to rest with a Radio Frequency (RF) Signal Detector that seeks out and alerts you to the presence of RF signals that these devices commonly use. If someone is using such equipment in the immediate area, this counter-surveillance device will make sure you know about it. Use it at home, in hotel rooms, clothing store fitting rooms, or anywhere you want to ensure privacy.

The sensor detects an enormously wide spectrum of frequencies, ranging from 50MHz all the way up to 3GHz. Plus, its powerful multi-channel scanning ability detects virtually all wireless cameras, listening devices, cell phones and much more. A sensitivity tuner allows you to decrease or increase the sensitivity, depending on your situation. Sensitivity feature can also be used to diminish background signal noise.

Both sound and LEDs indicate the strength of the detected signal. If you want to use it in places where you don't want sound to give you away, then switch it into vibrate mode. For truly silent operation, use the included earphone. Requires two 'AAA' batteries (sold separately). A battery low warning LED will illuminate when it's time to replace the batteries.
Important notes:
Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
Manufacturer contact information: KJB SECURITY, Tel: (615) 620-1370


3 Ratings
5 star: 33%  (1)
4 star: 33%  (1)
3 star: 0%  (0)
2 star: 0%  (0)
1 star: 33%  (1)
Average Customer Rating
(3 customer ratings)
Share your thoughts with other customers
RONALD -- lafayette, LA   7/4/2010
It just barely detects when the GE house wireless phone system is in use. I am referring to a land-line system wirelessly connected to four regular phones - not cell phones. It has to be within a few feet of a phone to detect its operation. I don't know if this is reasonable or not. Maybe an expert can comment. Otherwise, it is a nice little unit. It seems to be solidly built.
anon -- denver, Colorado   3/17/2008
I was pleased. It serves its purpose. I feel better now.
SUSAN -- dover, DE   8/19/2007
I was very pleased with the product. It was easy to follow directions to make it work. Although I didn't find what I was looking for, I don't think it was the product.
LARRY -- austin, TX   3/18/2006
the quality of it's construction (good) meet my requirements performed in general (good)
CHUCK -- heber springs, AR   6/4/2004
for unexpierenced people like myself, i found this item's instructional info very short and not conclusive... as far as the quality of the product, i felt that is rates very well. Smarthome is very easy and good to work with. Keep up the Good Work ya'll.


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