Surveillance and Stakeouts

Surveillance evidence is only as strong as the quality of the data—sharp images and intelligible audio. The CZM microphone technology provides unparalleled pickup and intelligibility of conversations and all other audio signals. E3A Outdoors

The CZM’s E3A Portable Surveillance System delivers unmatched digital audio technology in a user-friendly design that is highly portable and ideal for rugged outdoor use.  Manned or unmanned it captures high quality audio.

From a technology, reliability and usability perspective, CZM microphone technology (autonomous recording unit), meets the demanding needs of sustained surveillance criteria. 

Anywhere video cameras can be installed, the E3A Portable Surveillance System can also be installed.

It’s a number one choice for sustained surveillance and stakeout recordings for:

  • Marijuana grow fields (grow-ops)
  • Meth labs
  • High crime sectors
  • Vandalism
  • Illegal dumping
  • Other

Operational & Safety Advantages of CZM Microphone Technology

  • Captures high quality evidentiary audio data; conversations and other audio signals
  • Saves agencies time and money
    • Reduces number of surveillance staff needed and thereby labour costs
    • Decreases number of motions filed and other court-related costs
  • Improves officer safety for covert and other operations
  • Sustained surveillance and stakeouts made easy
  • 24/7 unmanned time-scheduled audio recording / surveillance for weeks at a time
  • Configurable to a variety of environments, situations and investigative objectives
  • Plug-n-play adaptability to audio and video recorders, pc-based content management software and archival systems

CZM’s Technical Advantages

  • Greater pick-up range than directional microphones
  • Capable of audio pickup up to 250 m (273 yds) away (depending on environment, atmospheric conditions and surrounding noise levels)
  • Captures sound at 360 degrees radially
  • Captures sounds from above and below
  • One CZM microphone replaces up to six 24-inch parabolic microphones—in less than one-sixth the size
    • Combine the CZM microphone with a parabolic dish and it delivers the pick-up power of a hyper-parabolic microphone
  • Greater forward sound pressure gain with no increase in self-noise
  • Higher acoustic gain; virtually no distortion of audio signal
  • Easily configurable for stereo (two microphones each configured in 180 degree directional pattern)

CZM’s Advantages for Outdoor Applications

  • Available with camouflage covers
  • Highly portable and lightweight
  • Can be mounted horizontally or vertically
  • Suitable for rugged environments, temperature fluctuations, and humidity; weather proof; (it’s been driven over, dropped, shot, attacked by a bear and just keeps on recording)
  • Easy installation and user-friendly

Important: It is the responsibility of the installation company and end user to install any audio listening devices and surveillance equipment in compliance with provincial/state and federal privacy laws. If you are unfamiliar with these laws, consult a qualified attorney.