- Float Level Senors (1)
- Infrared (IR) LEDs (20)
- Infrared Remote Receivers (4)
- Laser Diodes (6)
- Light Emitting Diodes (LED) (14)
- Photodiodes (4)
- Photointerrupters - Slot Type - Transistor Output (4)
- Phototransistors (5)
- Proximity Sensors (2)
- Sensor Modules (1)
- Specialized Sensors (1)
- Ultra Violet LEDs (2)