| Radar Sensors | Detection, tracking, and identification of objects. | Aircraft detection, missile guidance systems. |
| LIDAR Sensors | Detection and mapping of objects on earth’s surface. | Terrain mapping, target recognition. |
| Infrared Sensors (IR) | Detecting infrared energy (heat), converts into an electronic signal, which can be processed to produce thermal images. | Night-vision equipment, heat-seeking missiles. |
| Sonar Sensors | Detect objects on or under the surface of water. | Submarine detection, navigation, underwater communication. |
| Ultraviolet Sensors (UV) | Facility security, missile warning. | UV missile warning systems, UV Flame detection. |
| Acoustic Sensors | Detect and measure sound. | Submarine detection, gunfire locator systems. |
| Magnetic Sensors | Detect magnetic field or changes in magnetic field. | Mine detection, vehicle detection. |
| Chemical Sensors | Detect specific chemical agents. | Chemical attack detection. |
| Biometric Sensors | Identify individuals based on physical or behavioral traits. | Access control, identity verification. |
| Laser Sensors | Ranging, targeting, and countermeasures. | Laser-guided weapon systems, laser rangefinders. |
