;) The Type 40AO is a ½" high precision microphone for laboratory work. It covers a frequency range from 3.15 Hz to 20 kHz. Its small size and lower sensitivity make it extremely robust and stable and is capable of measuring sound pressure levels up to 160 dB re. 20µPa.This microphone is similar to the Type 40AG but, as a prepolarised condenser microphone, it does not require an external polarisation voltage and can be used with G.R.A.S. CCP* preamplifiers such as the Type 26CA. Download PDF Data Sheet: pd_40AO_ver_10_08_05.PDF * Constant Current Power |
Related Products: Type 40AD Adobe Acrobat reader is required for viewing data sheets. |
| Sensitivity: |
12.5 mV/Pa |
| Dynamic range: |
27 - 160 dB re. 20µPa |
| Frequency range: |
3.15 Hz - 20 kHz |
| Polarisation voltage: |
0 V |
| Outside diameter (with protection grid): |
13.2 mm |
| Length: (with and |
12.5 mm |
| without protection grid): |
11.6 mm |