sensor
/ˈsen.sər/noun
CEFR B1
Definition
A device that detects changes, such as movement or pressure, and passes the information to another device.
Built from the same root as sense — a motion sensor, smoke sensor, and so on.
Synonyms
detector
A device that detects changes, such as movement or pressure, and passes the information to another device.
Built from the same root as sense — a motion sensor, smoke sensor, and so on.