Microphones

Waterproof


• Highly waterproof and submersible
• Withstand explosive decompression
• Excellent environmental performance
• Corrosion resistant

Knowles’ waterproof microphones are designed to survive complete immersion in water. Form factors include a miniature design that can be immersed in water to a depth of one meter, and a bellows design for depths to 15 meters. The bellows design may be panel mounted and is suitable for outdoor use and repeated submersion. The miniature design offers excellent noise canceling performance that is ideal for underwater sensors and instrumentation.

MR Series

MR Series microphones combine a conventional element with a waterproof bellows assembly. The bellows conducts sound to the element and survives 15m (50 feet) of submersion in water. They may be panel mounted, attached for boom applications and are suitable for outdoor use or repeated submersion.

Product Families Model ID Dimensions 1kHz Sensitivity Response Directional Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
MR MR-23151-000 12.7 dia x 22.23mm (0.5 dia x 0.875in) -87.5 12 dB/oct Omni-directional n/a n/a
Download PDF Tech specs
(107.14 kB)
Download 3D Model 3D models
(191.63 kB)
MR MR-28406-000 12.7 dia x 22.23mm (0.5 dia x 0.875in) -60 Std Omni-directional 30 dB n/a
Download PDF Tech specs
(129.77 kB)
Download 3D Model 3D models
(357.68 kB)

WP Series

Form factors include a miniature design that can be immersed in water to a depth of one meter, and a bellows design for depths to 15 meters. The bellows design may be panel mounted, attached for boom applications and is suitable for outdoor use and repeated submersion.

Product Families Model ID Dimensions 1kHz Sensitivity Response Directional Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
WP WP-23501-053 4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in) -54 Flat Noise Canceling n/a -100 dB
Download PDF Tech specs
(114.84 kB)
Download 3D Model 3D models
(602.37 kB)
WP WP-23502-000 4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in) -52 Flat Omni-directional 25 dB n/a
Download PDF Tech specs
(108.91 kB)
Download 3D Model 3D models
(602.54 kB)
WP WP-23849-C36 4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in) -52 Flat Omni-directional 25 dB n/a
Download PDF Tech specs
(113.72 kB)
Download 3D Model 3D models
(767.85 kB)