Adastra CBM20 Ceiling Boundary Microphone

(Ex VAT)
(Inc VAT)
£25.00 £30.00
delivery in 1 - 2 working days ›

Safe and Secure online shoppping


Product Description

Product Ref:952346

The Adastra CBM20 Ceiling Boundary Microphone, is a low profile ceiling or panel mounting boundary microphone which 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.

CBM20 Key Features:

  • Phantom powered (9-52Vdc)
  • Threaded for up to 50mm mounting depth
  • Omnidirectional pickup pattern


  • Power supply 9 - 52Vdc phantom power
  • Cutout 20mmŲ
  • 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 31mmŲ
  • Weight 70g


Need Expert Advice?

  • Call Us now on: 01592 654 549
  • Alternatively you can Email Us
Public Sector

Call Us: 01592 654 549

United Kingdom
Republic of Ireland FlagRepublic of Ireland
UK (Non Mainland) FlagUK (Non Mainland)
UK - Guernsey FlagUK - Guernsey
UK - Isle of Man FlagUK - Isle of Man
UK - Jersey FlagUK - Jersey
UK - N. Ireland FlagUK - N. Ireland
UK Mainland FlagUK Mainland
Currency: GBP
UK Mainland FlagEUR
UK Mainland FlagGBP