GP2Y1014AU PM2.5 Dust Sensor – High Accuracy Air Quality Sensor | Replacement for GP2Y1010AU0F

Description

The SHARP GP2Y1014AU0F is an optical PM2.5 dust sensor designed for air quality monitoring in air purifiers, HVAC systems, and DIY electronics projects. It uses an infrared emitting diode and a phototransistor arranged diagonally within the device to detect light reflected by dust particles in the air, making it particularly effective at sensing fine particles such as cigarette smoke . The sensor outputs an analog voltage that varies linearly with dust density, with a sensitivity of 0.5V per 0.1 mg/m³ . This is an improved version of the widely used GP2Y1010AU0F, offering higher precision (manufacturer specification of ±15%) while remaining compatible with the older model in most circuits .

The sensor requires a pulsed LED drive circuit rather than continuous operation. A 150Ω resistor and 220µF capacitor are needed to pulse the LED at approximately 10ms intervals with a 0.32ms pulse width, which extends LED lifetime and ensures accurate readings . The module operates from a 5V supply (5–7V range) with low current consumption (20mA maximum, 11mA typical) . Note that this sensor provides basic particle detection rather than precise PM2.5 concentration measurement—it is best suited for relative air quality trends and threshold-based applications. A preheating period of 30 seconds to 2 minutes is required after power-on for stable readings .

Features

• Optical Dust Detection: IR LED and phototransistor detect reflected light from particles as small as 0.8µm, effective for smoke and fine dust .

• Improved Accuracy Over GP2Y1010AU0F: Higher precision (manufacturer spec ±15%) while maintaining compatibility with the older model .

• Analog Voltage Output: Output varies linearly with dust density at 0.5V per 0.1 mg/m³ for simple ADC interfacing .

• Low Power Consumption: 20mA maximum, 11mA typical average current for battery-sensitive and embedded applications .

• Pulsed LED Drive: Requires 150Ω resistor and 220µF capacitor for proper pulse timing; extends LED lifetime and improves measurement accuracy .

• Compact Package: 46×30×17.6mm dimensions with 6-pin connector for direct integration .

• Wide Operating Temperature: Functions from -10°C to +65°C for indoor air quality applications .

• 5-Year Service Life: Rated for long-term deployment in continuous-monitoring applications .

Technical Specifications