Model KI1258 consist of an Infra Red LED and a Photo IC(Digital Output). Other package has no aperture on the both light pass surface of the emitter an detector
Model KI1333 consist of an Infra Red LED and a Photo IC(Digital Output). Other package has no aperture on the both light pass surface of the emitter an detector
Model KI1334 consist of an Infra Red LED and a Photo IC(Digital Output). Other package has no aperture on the both light pass surface of the emitter an detector
Model KI1480 consist of an Infra Red LED and a Photo IC(Digital Output). Other package has no aperture on the both light pass surface of the emitter an detector