Parameter temperature humidity and dew point air speed, wind speed wind direction rain fall water light level visibility, opacity light wavelength, color nuclear radiation vibration, acceleration gravity stress, strain weight, force, tension fluid pressure distance, proximity, position, location tilt rotation speed flow liquid level pH chemical concentration (in water) Oxygen (in water) gas concentration (in air) chemical composition power frequency magnetic fields vision, image sound touch | Sensor thermocouple RTD Thermistor semiconductor pyrometer hygrometer Psychrometer rotating anemometer heated wire anemometer wind vane rain gauge wetness sensor pyronometer radiation pyrometer photoconductor photodiode ultraviolet sensor infrared sensor optical sensor laser sensor spectrometer alpha detector beta detector x-ray detector gamma detector piezoelectric accelerometer MEMS accelerometer MEMS accelerometer gravimeter, gravitometer strain gauge load cell torque sensor force sensor pressure sensor barometer laser micrometer photoelectric sensor fiber optic sensor ultrasonic sensor magnetorestrictive sensor eddy current sensor capacitive distance sensor string potentiometer LVDT Linear encoder Hall effect sensor gyroscope GPS inclinometer MEMS accelerometer gyroscope rotary encoder potentiometer RVDT tachometer inductance-coil pulse generator tachometer ultrasonic sensor laser sensor turbine flow meter mass flow meter orifice plate with pressure sensor float ultrasonic pressure sensor pH sensor electrochemical cell chromatograph dissolved oxygen sensor chemical detector gas chromatograph mass spectrometer chromatograph colorimeter wattmeter frequency meter tachometer magnetometer magneto-inductive sensor magnetorestrictive sensor Hall effect sensor camera microphone pressure sensor |