Petrutech Spy Shop
Professional Eavesdropping, Bugging and Surveillance Equipment

SET UHF 110 or 220v room transmitter and receiver


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This is THE best set of the professional AC Mains operated (110V - 220V) transmitter-receiver on the UHF band. It can cover an incredible large area and due to its special design is the most stable and powerful you may find. The Mains AC 110V - 220V NFM SET is made of high quality Japanese and U.S components and supplied with a super sensitive RF stage.
****** Do you like to change and pay for batteries? No, for sure, it's just a battery waste. This professional transmitter doesn't use battery at all. It is connected directly to the AC Mains electricity 110V - 220V . A special audio filter make it more sensitive than ever to human voices.
The Miniature UHF transmitter is intended for use in a property or business place. This AC transmitter will transmit conversations to a distant receiver with exceptional audio quality.
The set is designed and produced based on the high knowledge of our high skilled staff, and using only on modern technologies. Each transmitter and receiver is tested and tuned in our specialized laboratory and tested "on field" by high skilled engineers for maximum distance.
The size of the mini transmitter is so small, that it allows the customer to conceal it imperceptible in any secret place. The sensitive RECEIVER is adjusted to MHz, crystal controlled, fixed frequency.
We are adjusting each set to a 100% matching frequency. One of the unique receiver features - listening to the conversation and recording at the same time, if it is connected to a recorder.
The PLL UHF CRYSTAL CONTROLLED RECEIVER can be used in a room or business, indoor or outdoor. The estimated distance is from 200m in urban areas and up to 400+ meters (Line Of Sight).



  • Working Voltage: 9V alkaline battery (not included)
  • Dimension: ONLY 2 X 5.5 X 8.7 cm !!!.
  • Receiver's frequency range: 433.8-433.9MHz
  • This is an ORIGINAL crystal controlled NFM PLL UHF receiver.
  • Double Superheterodyne - PLL
  • Sensitivity: Better than –125 dBm into 50 Ohm (12 dB/sinad).
  • Less current drawing than any similar device - due to new components.
  • It uses a special antenna, only 14cm.
  • SMD built, for more stability and range (MIL SPECS 1% accuracy)
  • Sensitivity: Better than –125 dBm into 50 Ohm (12 dB/sinad)!
  • Deviation: ~ 2.5 KHz to 6 KHz !!!
  • Outlets for audio recording and earphones.
  • The battery time-life depends on the battery freshness and brand.
  • External DC jack.
  • PROFESSIONAL PLATED BOARD FOR EXTRA STABILITY. There is NOT oxidation and dry soldered joints during the time due to the coating material.
  • The Receiver comes ASSEMBLED AND READY TO USE, Just connect it and start listening.


  • Working Voltage: 110 or 220V line (no battery required!)
  • Dimension: ONLY 1.4 X 2.3cm !
  • Microphone: External microphone, Motorola, diameter 4 mm Omniderectional
  • Transmitter's frequency range: NFM (UHF) 433.6-433.9MHz FIXED MAINTENANCE FREE CRYSTAL.
  • Long transmitting range: Urban area - 200 mt. Line of sight: 600 mt.
  • SMD built, for more stability and range (MIL SPECS 1% accuracy).
  • EXTRA amplified, buffered output!
  • True FM - The only one Varicap controlled for power and stability.
  • Using a patent material for encapsulating, for safety and security !!!
  • The device is coated with special Anti-static material.
  • Penetrates through walls and ceilings.
  • Very easy installation.
  • User manual is included.
  • Its tiny electret (Condensed) microphone is so sensitive, you pick up a whisper from about 30sq.ft (100sq.m) radius , crystal clear.
  • User manual is included.
  • High-tech laminate makes it weather resistant, and THE ONLY ONE which is coated with ANTI - FIRE INFLAMMABLE MATERIAL!!!


  • 1 Set Crystal controlled PLL Crystal controlled receiver and UHF mains AC 110 or 220V transmitter.
  • 1 Instructions Manual.
  • 1 Gift


  • Model: SETMS
  • Shipping Weight: 0.05Kgs

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