Such a detector may also trigger a security camera to record the possible intrusion. Many modern motion detectors use combinations of different technologies.
While combining multiple sensing technologies into one detector can help reduce false triggering, it does so at the expense of reduced detection probabilities and increased vulnerability. For motion to be detected, both sensors must trip together.
If an intruder is able to fool either the PIR or microwave, however, the sensor will not detect it. Often, PIR technology is paired with another model to maximize accuracy and reduce energy use. From Wikipedia, the free encyclopedia. Retrieved Retrieved 19 July Geophone Hydrophone Microphone Seismometer. Air—fuel ratio meter Blind spot monitor Crankshaft position sensor Curb feeler Defect detector Engine coolant temperature sensor Hall effect sensor MAP sensor Mass flow sensor Omniview technology Oxygen sensor Parking sensors Radar gun Speed sensor Speedometer Throttle position sensor Tire-pressure monitoring system Torque sensor Transmission fluid temperature sensor Turbine speed sensor Variable reluctance sensor Vehicle speed sensor Water sensor Wheel speed sensor.
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Breathalyzer Carbon dioxide sensor Carbon monoxide detector Catalytic bead sensor Chemical field-effect transistor Electrochemical gas sensor Electrolyte—insulator—semiconductor sensor Electronic nose Fluorescent chloride sensors Holographic sensor Hydrocarbon dew point analyzer Hydrogen sensor Hydrogen sulfide sensor Infrared point sensor Ion selective electrode ISFET Microwave chemistry sensor Nitrogen oxide sensor Nondispersive infrared sensor Olfactometer Optode Oxygen sensor Pellistor pH glass electrode Potentiometric sensor Redox electrode Smoke detector Zinc oxide nanorod sensor.
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Manufacturers, suppliers and others provide what you see here, and we have not verified it. See our disclaimer. Skye Chadwick face the next challenge. In one reality, a certain Victorian detective who, in fact, exists in several continua was to have died along with his arch-nemesis at the Reichenbach Falls. Knee-jerking, Skye intervenes, rescuing her hero, who flies through the wormhole connecting universes. Unable to go back, Holmes must stay in our world and learn to adapt to the 21st century.
Can Chadwick help Holmes come up to speed in modern investigative techniques in time to stop the spies? Will Holmes be able to thrive in our modern world?
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