The Covert Microphone Assembly is a high quality sensitive omni-directional microphone which combines clear speech for a wide range of environments with small size to allow it to be hidden discretely.

Applications include

  • Emergency services
  • Surveillance operations
  • Utilities
  • Breakdown services
  • Taxis and other vehicular users

Technical Specifications:

Microphone Technology – Non-directional
Sensitivity – Typically -36dB @ 1kHz (0dB=1V/Pa) RL=2kΩ, Vcc=3V
Impedance – Typically 1.6kΩ ±30% @ 1kHz
Operating Voltage – Nominal 1.5V (1.1 to 9V)
Current Drain – <400 A @ VCC = 3V
Maximum input sound level – 115dB S.P.L
S/N ratio – 65dB or greater (A weighted) @ 1kHz (near field set-up)
Temperature – -10 to +50 ⁰C
Relative Humidity – 90%

Mechanical Specifications:

Body Material – Black Acetal
Cord Type – Black 2.0mm diameter, single core screened, extra-flexible
Cord Length – 3 metres
Plug – 3.5mm mono jack