GP2Y1010AU0F is a dust sensor by optical sensing system An infrared emitting diode (IRED) and an phototransistor are diagonally arranged into this device It detects the reflected light of dust in air Especially, it is effective to detect very fine particle like the cigarette smoke In addition it can distinguish smoke from house dust by pulse pattern of output voltage Compact.

 Features：

1) GP2Y1010AU dust sensor
2) sensitivity: 0.5 V/(0.1 mg/m3)
3) output voltage (no dust) : 0.9 V (TYP)
4) current consumption: 11mA

Typical applications:

used in products such as air cleaner, ventilation of air conditioner, air conditioning fan, etc.
GP2Y1010AU0F is an optical air quality ensor, designed to sense dust particles in the air. Its inside is equiped with infrared LED and phototransistor, allowing it to detect reflected light of the dust in the air, even mall particles such as tobacco smoke. It's usually used in air purification systems.
The sensor has very low current consumption (maximum 20mA, typical value 11mA), can use 7V DC. The sensor outputs analog voltage whose value is proportional to dust concentration.