Crow Systems - Bat Detector

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Crow Systems is a distributor of these affordable bat detection instruments. These devices are intended for use in presence/absence and population studies, or for educational purposes. For species identification purposes, or other more demanding bio-acoustic research, contact us with your requirements. Bats locate prey and navigate through their environment by analyzing the echoes of their ultrasonic calls. These high frequency calls ­ - typically between 25kHz to 125kHz - are inaudible to humans, as they are beyond the normal range of human hearing ­ - about 20kHz maximum. Equipment used by biologists for bat bio-acoustics research is expensive, rather bulky, and typically requires larger batteries for extended field use. This pocket-sized detector, with its low power circuitry, allows you can determine presence / absence, or perform censusing and population dynamics studies using a hand-held detector that will last for weeks with a single 9 volt battery. This low-cost detector is a perfect educational tool, as several can be purchased for a high detector-to-student ratio. View Detector WAV file of a bat call converted by the Detector. View spectrogram of a converted call. PRICE is only $48.95 each! - contact us for volume / educational discounts. Instructions with details on how you can record and analyze converted bat calls on your PC. Web-links to audio filtering, spectrographic analysis, and bat bio-acoustics tools. FAQ's for some basic questions and answers regarding the Detector. Contact us for mutiple unit purchase and educational rates. "If men had wings and bore black feathers, few of them would be clever enough to be crows" - Henry Ward Beecher "Who would believe that a small scene of nature could contain the images of the universe?" - Leonardo da Vinci All Crow Systems products are designed, engineered, tested and built in the United States of America! Keep our economy alive - Buy US!   WHY? - To find out, visit http://www.glassdog.com/smarttags/index.html Then contact Microsoft®© Site, text, and images (where applicable) copyright© Crow Systems, Ltd. 1999-2006 - all rights reserved