Petrutech Spy Shop
Professional Eavesdropping, Bugging and Surveillance Equipment

Set UHF powerful 9V transmitter and receiver 433 MHz


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The set contains a powerful spy bug transmitter and it combines the miniaturization and power of the UHF transmitter using 9V battery, and the sensitive UHF-433 PLL receiver Ver. 1, which is a sophisticated receiver controlled and stabilized by a crystal of quartz.
We are adjusting each set, both the spying listening device and the receiver to a maximal matching frequency. This set is using only high grade components, and one of the unique receiver features - listening to the converation 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. It employs a high sensitivity circuit which allows the user to receive the transmissions of our RF NFM bug Transmitters from 200m in urban areas and up to 650+ meters on straight line (Line Of Sight).


UHF Receiver

  • 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 FULLY ASSEMBLED AND READY TO USE, Just connect it and start listening.

UHF Transmitter

  • Working Voltage: 9V
  • Board Dimension: only 1cm x 2cm!
  • Transmitter's frequency range: NFM (UHF) 433.6-433.9MHz FIXED MAINTENANCE FREE CRYSTAL.
  • Long transmitting range: up to 650 m on clear. (L.O.S).
  • SMD built, for more stability and range (MIL SPECS 1% accuracy).
  • EXTRA amplified, buffered output!
  • NFM - The only one Varicap controlled for power and stability.
  • Using a patent pending material for encapsulating, for safety and security !
  • The device is coated with special Anti-static material.
  • Penetrates through walls and ceilings.
  • Very easy, no time installation.
  • User manual is included.
  • Its tiny electret (Condensed) microphone is so sensitive, you can listen to a whisper approx. 30sq.ft (100sq.m) radius , crystal clear. You won't miss a word. Microphone made in USA by Motorola high amplification FET .


  • 1 Set Crystal controlled PLL Crystal controlled receiver and TE_UHF transmitter.
  • 1 Instructions Manual.
  • 1 Gift
  • Model: UHFR9S
  • Shipping Weight: 0.05Kgs

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YouTube Channel

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