The MI21 microphone is designed to be splash-proof so that it can be used for measurement campaigns in wet or damp weather. A water-repellent seal on the membrane at the sound inlet prevents the electret capsule from being damaged by water.
The IEPE microphones with splash water protection, including MI17SW and RG-50SW, have proven their worth with brake manufacturers, among others, who mount the measurement microphone in the wheel arch in order to record disruptive brake noises.
MI21
1/4" sleeve diameter over the entire length
IEPE microphone for all applications in standard industrial environments. Suitable for all noise measurements above 26 dB(A) up to 130 dB.
1/4″ IEPE measurement microphone
Frequency response: 20 Hz – 20 kHz
Class 1 according to IEC 61672
Directional characteristic: omnidirectional
Sensitivity 50 mV/Pa
Measuring range 26 dB(A) to 130 dB SPL peak (5% dist.)
IEPE CCP constant current supply 2- 20 mA
Bias voltage: 12.5 V
Temperature range -10 to +80 °C
WS-RG-40 Windscreen 40 mm diameter
Temperature range -10 to +80 °C
Heat resistant up to 130°C
- German