APMKorea is providing the chip cell for SPO2 sensor to Europe, Asia as well as local market. Those chip cell pair is consisted of GaAs dual colored LEDs and high sensitive Photo Diode, performs reliable working with best stability. Our SMD package support your design flexibility would be applicable for any pulse-oximeter application. We have been proud of good reputation from our customers due to the high quality and reasonable price. If you want to know more about our products, please do not hesitate to contact us or take a look our web sites below. If you are not right person for this circular letter, please pass over to the relevant staff. Regards, Han *************6 APMKorea