"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." But the primary purpose of any decent detector is to sniff out various types of police radar—X, K, and Ka ...

Pedaling through a traffic intersection on a bicycle sometimes doesn’t leave enough time to ride through the green light before the signal turns red. So a few cities in California are testing a ...

Microwave radar sensors gained popularity before and during World War II for object detection. Radar sensors are non-intrusive equipment that transmits electromagnetic signals and receives echoes or ...

An evaluation kit with a fully operational 24GHz radar movement detector is being sold by Aspen Electronics. The K-LD2 evaluation kit has been developed by RFbeam Microwave, a German supplier of ...