The BioMon optoelectronic sensor is available from distributor Intelligent LED Solutions in three variants, each of which is available mounted on a reference design board that will enable early stage development and prototyping.

The heart rate and oxygen level monitoring is achieved through the transmission and detection of green and red light.

Green light transmitters are used for pulse rate measurement at the wrist, whereas red or infrared emitters are used for pulse rate measurement on the finger, as they can also measure the oxygen content of the blood (pulse oximetry).

In combination with a photodiode, the infrared LED can also be used as a proximity sensor. The sensor measures 4.7 x 2.5 x 0.9mm.