The type of sensor that is not influenced by exterior noise, reacts only to movement within a protected area, and can also be adjusted to the movement of air caused by a fire to activate the alarm is known as a(n):

Question

Quizplus · Accepted Answer

Ultrasonic sensors are designed to detect movement within a specific area and are less influenced by exterior noise. They can be adjusted to detect air movement caused by a fire, triggering an alarm.

The Type of Sensor That Is Not Influenced by Exterior