USG Electret Ultrasound Microphone
Avisoft Bioacoustics / Knowles FG
part # 40001
- Approximate input-referred self-noise level (bandwidth: 30-50 kHz): 26 dB SPL
- Approximate sensitivity : 500 mV/Pa
- Power supply : 5 V, 14 mA (provided by UltraSoundGate xx16x)
- Connector : male XLR-5 plug
- Diameter : 20 mm
- Length : 47 mm
- Weight : 40 g
The Avisoft Bioacoustics electret ultrasound microphone is a cost-effective model that employs an FG-series electret capsule by Knowles.
![](https://www.avisoft.com/wp-content/uploads/2019/09/fg-1.jpg)
![](https://www.avisoft.com/wp-content/uploads/2019/09/fr_fg.jpg)
frequency response
![](https://www.avisoft.com/wp-content/uploads/2019/09/pol_fg.jpg)
polar diagram
![](https://www.avisoft.com/wp-content/uploads/2019/09/fg.jpg)
P48 Electret Ultrasound Microphone (Avisoft Bioacoustics / Knowles FG)
part # 40002
for third-party recording equipment that can supply a 48V phantom power
- Approximate input-referred self-noise level (bandwidth: 30-50 kHz): 26 dB SPL
- Approximate sensitivity: 500mV/Pa
- Power supply : 48V, 10mA phantom power
- Conncetor: male XLR-3 plug
- Diameter : 20 mm
- Length : 47 mm
- Weight : 30 g