Sharp GP2Y1010 Optical Dust / Particle Sensor (analog)

Optical dust sensor that detects particulate matter (smoke, dust) using an IR LED and phototransistor. Outputs an analog voltage proportional to particle concentration — suitable for air-quality monitoring projects.

• Analog voltage output — requires ADC/pulse-sampling
• Detects submicron particulates (typical use: cigarette smoke / dust)
• Common in DIY air-quality and HVAC monitoring setups