Equipment  Bat Survey  Ultrasound Microphones 

Pettersson M500 USB Ultrasound Microphone

  • Bat detection and recording for Windows devices
  • Portable full spectrum viewing and recording
  • Compact high quality electret microphone
  • Free software


#211081 | Availability: In stock
Clearance price: £399.00 inc VAT £445.00 (Save £46.00) $507/€453 approx

About this product

The Pettersson M500 USB Ultrasound Microphone is an exciting new addition to the popular Pettersson range of bat detectors. The M500 is designed to be plugged into a Windows tablet or laptop to provide the highest quality full spectrum bat recordings and the free software provides a real time spectrogram viewer. The Pettersson M500 USB Ultrasound Microphone incorporates the same high quality electret microphone technology as the Pettersson D-500 and is housed in a durable aluminium body. It is supplied with a removable directional horn, so that recordings can be directional or omnidirectional to increase flexibility. With low-noise technology, high sampling frequency and efficient anti-aliasing filter, the M500 provides the highest quality recordings.

The M500 USB Ultrasound Microphone can be connected to the USB port of your Windows tablet, laptop or PC and is powered by the USB connection. The calls can then be viewed as spectrograms or waveforms and recorded in full spectrum using the free Windows software. The M500 software also has the additional functionality of being able to generate triggered recordings, so that only bat calls of interest are recorded to save memory and simplify subsequent call analysis. There are three triggering modes: automatic, level triggered or frequency triggered and there is a pre-trigger option, where recordings will start 1 second before the trigger is activated. The M500 also has a single-shot mode, where the screen will freeze once a recording is triggered so that the call can be examined in the field, and a circular recording mode which can be used to capture the last few seconds before a manual recording is made.

The M500 USB Ultrasound Microphone comes with a version of BatSound Touch Lite.


Microphone: Advanced electret

Sampling frequency: 500kHz

ADC resolution: 16 bits

Interface: USB 2.0,  full speed, OTG/host

Anti-aliasing filter: 8th order, 210kHz

Real-time monitoring: Through the PC sound card (down-sampling)

Size: 43 x 114 x 13mm (incl microphone horn)

Weight: 60g

Power: USB bus powered

Operating system: Windows Vista, Windows 7, Windows 8



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