Petrutech Spy Shop
Professional Eavesdropping, Bugging and Surveillance Equipment

High power transmitter crystal controlled UHF external microphon


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A mini spy bug for room monitoring. The main feature is: its 4 mm Ø external microphone on 2" (5 cm) cable, which makes it easier to conceal.
With the RAUHF we offer a powerful battery operated transmitter. The output power of 15 mW allows transmission in ranges of several hundred meters within the UHF-radio band. It uses a 9V battery. Transmitting very clear audio and voices wireless in the ISM UHF band, achieving high distance and extereme privacy due to using the UHF range. The estimated distance is approx. 200m in urban areas and up to 700m  in line of sight. Maximal drawn current is 18 mA. Maximal output 12dBm. Super sensitive external microphone. Requires an UHF receiver (we sell 3 UHF receivers which mach our transmitters) or an UHF scanner. One of the best listening devices in the surveillance market!
The RAUHF broadcasts powerful, clear sound. The transmitter is designed and tested in our specialized laboratory and tested as well on field, by high skilled engineers, for acheiving maximal distance.


  • Power supply: 9V
  • 4mm Ø external microphone on 5cm cable
  • Dimension:  only 1 cm X 2 cm!
  • Transmitter's frequency range: NFM (UHF) 433.6-433.9MHz QUARTZ STABILIZED.
  • Estimated transmitting distance:  up to 200 m in line of sight. (L.O.S).
  • SMD built, for more stability and size (MIL SPECS 1% accuracy).
  • Using a special material for encapsulating, for safety and stability !!!
  • The device is coated with special Anti-static material.
  • Penetrates through walls and ceilings.
  • Very simple handling.
  • User manual is included.
  • Small external microphone FET electret (Condensed) sensitive covers 10m radius, clear audio


  • 1 Transmitter UHF Bug Spy Quartz Crystal stabilized RAUHF external microphone
  • 1 Instructions Manual.
  • Model: RE-UHF
  • Shipping Weight: 0.05Kgs

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