A microphone detects sounds transmitted in the air.
This sounds like it's probably the sonar system of a submarine.
It's called a "Motion Detector"!
A Passive InfraRed Sensor (PIR)
The Piranah Water 3000
Diffraction The answer is Echolocation.
A record of a persons hearing ability obtained by a audiometer. An audiometer is an instrument used in detecting the sounds available to the human ear
Underwater sound detecting systems are called hydrophones. These devices are used to listen to and record sounds underwater, such as those produced by marine animals or underwater activities.
Ears and a stethoscope.
A cloud chamber do not actually form clouds. It is a device that is used for detecting particles of ionizing radiation.
A hydrophone is typically used to detect dolphin sounds. It is an underwater microphone that can pick up and record the sounds made by dolphins and other marine animals.
A electronic device used to hear songs and sounds abort
sonar is a device for detecting objects underwater by emitting sound waves and analyzing the echoes that bounce back. It is commonly used in navigation, fishing, and underwater mapping.