phototransistor
121Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) …
122Floppy disk — Floppy redirects here. For other uses, see Floppy (disambiguation). 8 inch, 5 1⁄4 inch, and 3 1⁄2 inch floppy disks …
123Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
124Rain gauge — A rain gauge (also known as a udometer or a pluviometer [fluviograph] or a cup) is a type of instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation (as opposed to solid precipitation that is… …
125Photoresistor — The symbol for a photoresistor[1] A light dependent resistor …
126Remote control — For other uses, see Remote control (disambiguation). A television remote control unit (RCU) A remote control is a component of an electronics device, most commonly a television set, used for operating the television device wireless …
127Transducer — A transducer is a device, usually electrical, electronic, electro mechanical, electromagnetic, photonic, or photovoltaic that converts one type of energy or physical attribute to another for various purposes including measurement or information… …
128List of sensors — * Accelerometer * Touch sensor * Active pixel sensor * Air flow meter * Alarm sensor * Bedwetting alarm * Bhangmeter * Biochip * Biosensor * Breathalyzer * Capacitance probe * Carbon paste electrode * Carbon monoxide detector * Catadioptric… …
