Main centres: | 1-3 business days |
Regional areas: | 3-4 business days |
Remote areas: | 3-5 business days |
Super sensitive microphone for CCTV security camera
one unit can cover up to 25sq meter area.
connection guide: there are 3 connection points on the microphone main board(below the cover), they marked as SIG / GND / +12V, u can connect AC power +12v to +12v and -12v to GND. and use audio cable connect SIG and GND.use another end of audio cables connect to ur DVR card via a BNC connector. Job is done! now your DVR can hear and record sound from the monitoring area at the same time.