A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors.

The Misfit Shine is an example of a partially passive wearable sensor. The future of sensors won't be handheld devices like Star Trek's tricorder. It will be invisible sensors in your shoes, ...

UC San Diego has developed a system that uses analog sensors with a direct interface to RFID tags, making them passive sensor devices. The solution includes analog to digital conversion without ...

Tund is offering its solution leveraging strain sensor technology from Asygn for a battery-free system that monitors content levels of drawers or containers based on weight and transmitted via RFID. A ...