USG Electret Ultrasound Stick Microphone
Avisoft Bioacoustics / Knowles FG-S
part # 40024
- Approximate input-referred self-noise level (bandwidth: 30-50 kHz): 26 dB SPL
- Approximate sensitivity: 500mV/Pa
- Power supply : 5V, 14 mA (provided by UltraSoundGate xx16x)
- Conncetor: male XLR-5 plug
- Diameter : 11.5 mm
- Length : 540 mm
- Weight : 230 g
The Avisoft Bioacoustics Knowles FG-S electret ultrasound microphone is prepared for the installation at the tower of large wind turbines for monitoring bat activity near the lower rotor blade tip.
![](https://www.avisoft.com/wp-content/uploads/2019/09/fg-s.jpg)
![](https://www.avisoft.com/wp-content/uploads/2019/09/fr_fg-1.jpg)
frequency response
![](https://www.avisoft.com/wp-content/uploads/2019/09/pol_fg-1.jpg)
polar diagram
P48 Electret Ultrasound Stick Microphone
(Avisoft Bioacoustics / Knowles FG-S)
for third-party recording equipment that can supply a 48V phantom power
part # 40025
- 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 : 11.5 mm
- Length : 540 mm
- Weight : 230 g
![](https://www.avisoft.com/wp-content/uploads/2019/09/fg-s.jpg)