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Franzis Make Your Own Bat Detector Kit & Manual
Who says you can't hear the sounds of bats? With the proper technical utilities you can hear them - and much more! Build your own high-quality ultrasonic detector and experience these sounds for yourself! This assembly kit makes it an easy and fool-proof process The printed circuit board is already fit with many SMD components All there is to do is soldering in a few parts and connecting the circuit board with the microphone the loudspeaker and the control elements Up-to-date integrated circuits provide for high sensitivity and volume Once you have assembled the bat detector you can go exploring With the completed detector you can turn the ultrasonic calls of bats into audible sounds You can trace these fascinating flight artists in the dark to the places where they hunt for insects
unnoticed Not only bats but also a host of technical devices emit ultrasonic sounds You will be surprised how many inaudible acoustical sources surround us! Boost your ears 20 kHz is not enough!Not suitable for children under 14!In addition you will need Soldering iron (for the assembly) 9 V battery for up to 25 hours observation time
unnoticed Not only bats but also a host of technical devices emit ultrasonic sounds You will be surprised how many inaudible acoustical sources surround us! Boost your ears 20 kHz is not enough!Not suitable for children under 14!In addition you will need Soldering iron (for the assembly) 9 V battery for up to 25 hours observation time
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