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Home / Computer Hardware, Monitors & Peripherals / PM2.5 Gas Dust Sensor Module Air Quality Detection Temperature Humidity 3-in-1 Sensor

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Model Compatibility PMS7003, PMS5003ST, PMS5003, PMS3003, PMSA003
Detection Principle Laser Scattering Technology
Particle Size Channels 0.3, 0.5, 1.0, 2.5, 5.0, 10.0 μm
Concentration Range 0 to 999 μg/m³
Communication Interface UART (TTL Level)
Operating Voltage 5.0 V DC ±5%
Operating Current Maximum 100 mA
Temperature Range -10°C to 60°C
Humidity Range 0 to 99% RH (Non-condensing)
Module Dimensions 38 x 21 x 18 mm

5 reviews

A

Anonymous

Mar 24, 2026

Rating: 3/5

Documentation could be better

The hardware works fine, but finding the specific pinout for the ST version took some searching. Once wired correctly, it functions as expected. Just be prepared to dig for specs.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Accurate readings

Compared the output against a professional grade meter in my office. The PM2.5 values were within an acceptable margin of error. Great for building custom air purifiers.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Good value but needs warm-up

The sensor works well once it stabilizes. Give it about 60 seconds after powering on before reading data. The temperature and humidity integration is a nice bonus for the price point.

A

Anonymous

Feb 10, 2026

Rating: 5/5

Perfect for Home Assistant IoT

Integrated this module with an ESP32 for my home air quality dashboard. The UART communication is straightforward and the data matches my standalone monitor closely. Highly recommend for DIY projects.

A

Anonymous

Feb 01, 2026

Rating: 5/5

Compact and reliable

Fits perfectly into my 3D printed enclosure. The fan noise is minimal which is important for bedroom monitoring. Shipping was fast and packaging was secure.

5 FAQ

Q: What is the default baud rate for communication?

A: The default UART baud rate is typically 9600 bps. Please refer to the specific datasheet for your model variant to confirm.

Q: How often does the sensor need calibration?

A: These modules are factory calibrated. Under normal operating conditions, they do not require user calibration for their expected lifespan.

Q: Is this module compatible with Raspberry Pi?

A: Yes, you can connect it via a USB to TTL serial adapter. Ensure you configure the UART settings correctly in your OS.

Q: Does this sensor detect CO2 levels?

A: No, this module detects particulate matter (PM1.0, PM2.5, PM10) and environmental temperature/humidity only. It does not measure gas concentrations like CO2.

Q: Can I power this directly with 3.3V?

A: We recommend using 5.0 V DC for stable operation. While some logic pins are 3.3V tolerant, the fan and laser require 5V for consistent performance.

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