Xiamen Headleader Technology Co., Ltd. is one of the most famous ir sensor manufacturers and suppliers in China,Website: , equipped with a productive factory, we are able to offer you ir sensor manufacturing.Headleader IR Sensor consists of an emitter, a detector and the associated circuitry. The circuit required to make an IR sensor consists of two parts; the emitter circuit and the receiver circuit.The emitter is simply an IR LED, and the detector is simply an IR photodiode which is sensitive to IR light of the same wavelength as that emitted by the IR LED. When IR light falls on the photodiode, its resistance and correspondingly, its output voltage, change in proportion to the magnitude of the IR light received. Plastic cover protection is available for the Receiver / Detector.For more information, please contact us at sales@eheadleader.com, or talk to us on skype: Jenny@eheadleader.com, Gloria@eheadleader.com.