The simple bat detector uses frequency division to lower the bat’s chirping to a frequency we can hear. For example, if a bat is calling at 91kHz the system will divide it by 16 and put out 5.7kHz.

Intruder detector is an important component of intruder alarm systems. Search and compare from our catalog of intruder detectors from industry leaders in intruder alarm systems.

Here's a closer look at why visual and audible alerts are becoming indispensable for modern campus emergency response systems. Rick Sheets, Brinks Home ...

Apple researchers developed an AI model trained on behavioral data collected from wearables, and it performed surprisingly well.