Magenta Bat 4 bat detector

With a Magenta Bat Detector you can listen to ultrasonic chirps, smacks and clicks from these amazing creatures. Special circuitry detects the human-inaudible sounds emitted by bats and processes them into a form that human hearing can discern.

The Magenta Bat4 Bat Detector is a completely new detector developed from our experience with previous designs. 
All the good features of the original are there, including high level audio output, and built-in front-facing weatherproof loudspeaker. 

* Advanced low noise IC preamplifier stage
* high stability 'easy tuning' linear heterodyne oscillator
* New audio circuits
* Increased gain and sensitivity
* Convenient bottom mounted headphone socket (mutes Loudspeaker)
* Line level tape recorder socket - constant level regardless of volume control
* Low noise Analogue MEMS microphone with extended high frequency response
* Top lit calibrated frequency dial