Make the animals' ultrasonic waves audible. With the finished detector, the ultrasound calls of bats can be heard. In this way you can track these fascinating creatures in the dark.
Its not only bats, but also numerous technical devices send out ultrasound. You will be surprised by how many inaudible sources we are surrounded by.
It requires 9V battery which is NOT included and is not suitable for children under 14 years
Features: Franzis Build Your Own Bat Detector Kit
Specifications: Franzis Build Your Own Bat Detector Kit
Kit Content
Olympus PPZR-EP07 Focus Gear for M.ZUIKO DIGITAL ED 30mm 1:3.5 Macro
Manufacturer's Warranty
User Guide