HCPD2-02
The Humichip II is a humidity and temperature sensor with extremely low power consumption and +/-2% as accuracy of humidity measurement.
KED461M31
Kyosemi, Photodevices for Sensors - Emitters, Plastic Mold LEDs for sensors, Blue color, Kyosemi Photodevices for sensors
KI1319
Model KI1319 consist of an Infra Red LED and a high sensitive Photo transistor. Other package has no aperture on the both light pass surfaces of the emitter and detector.
