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Knowles ST microphones - MR Series

The MR Series Assemblies consist of a microphone element attached to a bellows assembly. They may be panel mounted, attached for boom applications, and are suitable for outdoor use or repeated submersion.

- Highly waterproof – no loss of performance after immersion in 15-20 m water
- Corrosion resistant
- Withstands explosive decompression
- Design proven in rugged environments
- Cable wire attached
- High resistance to mechanical shock
- Acoustically transparent bellows
- Resists effects of mud, sand, and salt encrustation

Model	Dimensions (mm)	Sensitivity @ 1kHz	DC Supply (Vdc)	Max. Ampli. Current Drain (uA)	"A" Weighted Noise	Nom. Output Imp. (Ω)	Comments
MR-23151-000	22.12 DIA x 9.3	-87.0±3	N/A	N/A	30.0 dB	300	2-Wire, 193mm Leads
MR-23793-000	22.12 DIA x 11.43	-60.0±4	1.3	100	31.0 dB	2500	3-Wire, 201mm Leads
MR-28406-000	22.12 DIA x 7.6	-60.0±3	1.3	50	30.0 dB	3500	3-Wire, 202mm Leads

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Last Updated: Thursday, 20 June 2013 08:50

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