A sensor is a tool used to find or measure things like heat, light, or movement. It sends data to a machine or computer for action.
The sensor measures the temperature outside.
The sensor detects light in the room.
In machines or cars, a sensor watches for changes like speed or temperature. It helps the machine work correctly by controlling parts when needed.
The car’s sensor stops the engine if there is a problem.
A sensor controls the air inside the house.
In biology, a sensor is part of the body that feels or notices things like heat, light, or sound. These sensors help us understand the world.
Our skin is a sensor for temperature changes.
Eyes are sensors that detect light.
In computers, a sensor finds changes in things like movement or light and sends this data to the computer to use or react.
The sensor sends signals to the computer.
Motion sensors help save energy.
Sometimes, the word sensor means a person who notices or feels things very well, like emotions or changes around them. This use is more general and less common.
She is a sensor of others’ emotions.
A good friend is a sensor for trouble.
In cameras, a sensor is a special part that catches light and turns it into pictures. It replaces film in digital cameras.
The camera sensor takes clear pictures.
This sensor captures light very well.
Some sensors find dangers like smoke or gas in houses or buildings. They send warnings to help keep people safe.
The smoke sensor warned us of fire.
Gas sensors keep homes safe.
