biomedical sensor; biosensor
Technical term for a sensor that detects biological or physiological information, such as heart rate, blood components, or neural signals.
This biomedical sensor can continuously measure blood glucose levels.
human detector; human detection sensor
Used in security, automation, or robotics to detect the presence of a person, often via infrared, ultrasonic, or camera-based methods.
We installed a human detection sensor at the entrance so the lights turn on when someone arrives.