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Home / Computer Hardware, Monitors & Peripherals / D7B Laser PM2.5 Sensor Module for PM2.5, Dust, Particulate and Home Air Quality Detection

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Detection Principle Laser Scattering
Communication Interface UART / PWM
Operating Voltage 5.0V +/- 5%
Response Time Less than 10 seconds
Particle Size Range 0.3 to 10 um
Concentration Range 0 to 1000 ug/m3
Operating Temperature -10C to 60C
Operating Humidity 0% to 95% RH
Module Dimensions 48mm x 38mm x 13mm
Expected Lifespan Over 20,000 hours

5 reviews

A

Anonymous

Apr 06, 2026

Rating: 4/5

Good sensor, wiring needs care

Accurate data but the pinout diagram could be clearer. Once connected, it is stable.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Perfect for my air quality monitor

Works flawlessly with my ESP32 setup. Readings match my commercial purifier.

A

Anonymous

Feb 18, 2026

Rating: 4/5

Great value

Cheaper than buying a whole unit just for the sensor. Works as expected.

A

Anonymous

Feb 12, 2026

Rating: 5/5

Reliable for prototyping

Using this for a client project. Consistent output and low power consumption.

A

Anonymous

Feb 08, 2026

Rating: 5/5

Genuine product

Verified genuine D7B. Packaging was secure and delivery was fast.

5 FAQ

Q: What is the data update frequency?

A: The standard update rate is 1 second per data point.

Q: Does it come with a fan?

A: Yes, the module includes the internal sampling fan.

Q: How do I clean the sensor?

A: Use compressed air gently on the inlet. Do not open the casing.

Q: Is this compatible with Arduino Uno?

A: Yes, it works via UART. You may need a logic level converter.

Q: Can this detect smoke?

A: It detects particulate matter which includes smoke particles, but it is not a dedicated smoke alarm.

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