CCTV Installations Bournemouth
  • over 200 installations
  • police approved
  • certified specialists
  • Same day installation
  • Full Warranty
  • Full After Sale Support
Prices From £399
Apple : PC : iPhone : iPad : Android
Watch Demo
08455 271771, 01202 232240
Alarm Installations Bournemouth
  • Over 200 installations in UK
  • Insurance Approved
  • Certified Specialists
  • Same Day installation
  • 10 Years of Experience
  • Full Warranty
Prices From £299
08455 271771, 01202 232240

CCTV Microphone Guide

CCTV monitor

CCTV monitor

With the latest CCTV requirements almost all digital recorders have audio input for a microphone.
The microphone converts human speech and sound to electronic impulses thanks to a mini membrane. It work on the same principal like the human ear and it uses electricity to convert the membrane trembling into electronic signal which is amplified and filtered then passed to the DVR for recording.

DVR will only work with a microphone that has a built an amplifier and noise filter built in. Here comes the difference between the different microphones.
The high quality microphones are made of very sensitive membrane combined with the high ratio amplifier and sophisticated filter. Even if one of these component is not good enough the sound coming from your microphone will be either too quite , have too much background noise or a lot of frequency interference.

Normally CCTV microphones have an adjustable sensitivity knob which allows you to set it according to your room volume. Most microphones cover rooms of up to 20-30 sq meters