Magenta MkIIb Heterodyne Bat Detector 20 to 130 kHz Frequency Range
Magenta MkIIb Heterodyne Bat Detector – Not sure on exact age - Full working order. Magenta MkIIb bat detector. Heterodyne tuning dial to isolate specific bat calls. Frequency range: 20 to 130 kHz – covers the full range of UK bat species.