Petrutech Spy Shop
Professional Eavesdropping, Bugging and Surveillance Equipment

Transceiver sensitive UHF programmed for our transmitters

  • Description
  • Details
  • Reviews
  • YouTube Channel


This is the most sensitive PROFESSIONAL PROGRAMMABLE RECEIVER design in the UHF room bugging and spying UHF NFM Receivers.

Used for picking-up conversations from long distance in the UHF band, the PLL Programmable Receiver employs an extra high sensitivity circuit which allows the user to pickup RF  bug transmitters from several miles away. The PLL Receiver employs a state-of-the-art surface-mount technology, making it the most effective wireless audio receiver of its kind. The stability, sensitivity and efficency of the Programmable UHF PLL Receiver exceeds the best scanners.

We've designed it especially for the listening devices in this category. The receiver's original PCB module was replaced by a custom designed receiver board, built especially for our specifications, made in Europe. It compete scanners that are much more expensive, due to using a ready made enclosure.

All our Crystal Controlled UHF transmiters (phone line wiretaps, phone "adapters" taps, Mains (110V / 220V) transmitters, VOXes and room transmitters will match the receiver frequency.


  • The device's dimensions are very compact and almost unnoticed.
  • The receiver easily fits in a shirt pocket, so you won't have to hold it in your hands.
  • The antenna is thinner, shorter and detachable - less observed. It can be used with an external antenna - for inside car surveillance.
  • Our receivers are more sensitive than many other transceivers.
  • High-quality precise PCB.
  • High-quality golden cover of contact plates.
  • Active and passive elements from leading worldwide brands.
  • The PLL UHF CRYSTAL CONTROLLED RECEIVER can be used in a room or business, indoor or outdoor.


  • Working Voltage: 3.7V Li-ion, 1500mAh. rechargeable.
  • Estimated working time between chargings: 10-12 hour.
  • Smart charger: Desktop charger AS GIFT(ONLY US PLUG).
  • Dimensions: 110 X 50 X 32 mm (without antenna)
  • Stability: 2.0ppm.
  • Frequency: True NFM (Narrow Band FM) or WFM (factory programmed).
  • Distance: Extreme Long receiving distance. Picks up transmissions through walls and ceilings.
  • Receiver's frequency range: Frequency range 400 - 450 MHz (PROGRAMMABLE).
  • Sensitivity: Better 0.55 µV into 50 Ohm (12 dB/sinad).
  • Deviation: 2.5 KHz to 6 KHz
  • Outlets for external audio recording or earphones.
  • Adjacent Channel Selectivity: ≥60dB
  • Gold plated PCB.
  • 15 pr4ogramable channels (in our lab)!
  • Audio:High quality 1000mW
  • Antenna: semi-flexible DETACHABLE antenna, 10 cm.
  • Adjustements: No adjustments are required.


  • 1× Portable radio
  • 1× Inductively loaded antenna
  • 1× Li-ion battery pack
  • 1× Desktop charger AS GIFT(ONLY US PLUG)
  • 1× Belt clip
  • 1× Handstrap
  • Model: PETRU433S
  • Shipping Weight: 0.08Kgs

Cornel G.
5 of 5 Stars
Fast shipping, good reception. Very good sound. Exceptional customer service!

YouTube Channel

For your convenience and information we have added some videos to our YouTube Channel.

The videos are designed to give you a better insight of the functionality of our equipment.

The link opens in a new browser window.

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