List of sensors   Acoustic, sound, vibration: Geophone Hydrophone Lace Sensor a guitar pickup Microphone Seismometer Automotive, transportation: Air & fuel ratio meter Blind spot monitor Crankshaft position sensor Curb feeler, used to warn driver of curbs Defect detector, used on railroads to detect axle and signal problems in passing trains Engine coolant temperature sensor, Read more about List of sensors[…]