CBM20

This low profile ceiling or panel mounting boundary microphone has an omnidirectional pick-up pattern which is suitable for use where discreet audio surveillance is required. Applications range from audio pick-up in induction loop systems to audio monitoring and recording for CCTV systems.,
,Cutout:20mmØ
Frequency response:50Hz-17kHz
Max. input SPL:140dB @ 1kHz (?1% THD)
Sensitivity:-39dB ±3dB (0dB=1V/Pa at 1kHz)
Impedance:200? ±30% (at 1 kHz)
Dimensions:70 x 31mmØ
Weight:70g
Power supply:9 - 52Vdc phantom power