Wildlife Acoustics model SM2BAT+ ultrasound recorder
Pettersson Elektronik model D500X ultrasound recorder
Wildlife Acoustics model SM3BAT ultrasound recorder
Titley Scientific‘s Anabat Express ultrasound recorder
Wildlife Acoustics model SM4BAT FS ultrasound recorder, with separate GPSr attachment for mobile use
Pettersson Elektronik model M500 ultrasound recorder (requires laptop and software)
Wildlife Acoustics Echo Meter Touch ultrasound recorder (requires iPad or iPhone and software)