Petrutech Spy Shop
Professional Eavesdropping, Bugging and Surveillance Equipment

Spying transmitter UHF connected to AC 110 or 220V THIN

$197.95  $148.00
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Unique, highly miniaturized micro transmitter that is connected directly to the 220V AC mains. Exceptional audio performance. Amplification control. This microphone has been designed to be installed inside a junction box or behind a wall socket. A distance of more than 500 meters can be reached in an open field. This is the smallest and most powerful professional spy bug covert microphone in the NFM UHF broadcasting band for room surveillance using the electricity mains. These hidden transmitters are connected to the mains (110 - 220 V) as power provider, replacing the need of using batteries !!! This feature permits concealing them in difficult places, for example behind outlets, in small electricity junction boxes, in drawers or behind curtains etc. The audio transmitter uses an external miniature microphone and can be used in a room environment. The audio sensitive bug MAUHF-V3 can be installed in a room like any ordinary bug, without wasting money on any batteries!
This covert spying bug broadcasts a powerful, clean sound. The listening device is designed by our high skilled engineers, and based only on modern technologies. Each transmitter is tested and adjusted in our specialized laboratory and as well "on field" by high skilled staff for maximum distance.
It requires an UHF receiver, on the 400 mHz band, NFM, 5kHz steps. We sell 3 types of receivers which match these specifications.


  • Alimentation: 110V or 220V line (Without battery!)
  • Dimension: ONLY 14 X 23 X 6 mm !
  • Frequency: NFM (UHF) 433.6-433.95 MHz
  • Estimated distance: up to 1000 ft - ~ 350m line of sight. (L.O.S).
  • The device is coated with special Anti-static and Anti inflammatory material.
  • High walls penetration.
  • Very easy installation.
  • User manual is included.
  • High amplification FET omnidirectional external microphone.

Please note: the matching receiver for this device is the following one:

or any receiver within 400-450 MHz band and 2.5 kHz steps.



  • 1 Crystal controlled PLL Crystal controlled 110V/220V Transmitter SPY BUG
  • 1 User Manual.
  • Model: FLTMAUHF
  • Shipping Weight: 0.03Kgs

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