- Ambient Light Sensors (9)
- Infrared (IR) LEDs (30)
- Infrared Remote Receivers (21)
- Light Emitting Diodes (LED) (95)
- Photointerrupters - Slot Type - Transistor Output (21)
- Phototransistors (11)
- Reflective Optical Interrupters (5)
- Ultra Violet LEDs (2)
Established in 2004, TONYU is a group company specializing in the development, production, sales, and service of electronic components, with a total investment of over 25 million yuan and an annual sales volume of 150 million yuan. Established in May 2009