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Laser PM2.5 Air Quality Sensor

5 out of 5 based on 1 reviews | Write a review

$64.31

The highly efficient, low-energy laser PM2.5 air quality sensor has a particulate matter measurement range of 0.3–10 µm, and it provides PWM and UART outputs for particulate matter concentrations, making it suitable for a variety of air quality monitoring applications.

SKU: ATO-AQS-D7

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Delivery date: 6-12 days

Overview

The PM2.5 air quality sensor uses laser light scattering technology with a measurement range of 0.3–10 µm and has a particle concentration range from 0 to 700 µg/m³. It supports fast real-time data feedback with a response time of 1–10 seconds, ensuring real-time monitoring of air quality.

Specification

Model	ATO-D7
Measurement Range	0.3–10 μm
Effective Mass Concentration Range	0–700 μg/m³
Maximum Mass Concentration Range	≥1000 μg/m³
Mass Concentration Resolution	1 μg/m³
Effective Sampling Volume	0.1 L
Particle Count Range	0–65535 particles/0.1 L
DC Supply Voltage	4.9–5.1 V
Interface Logic Level	2.7–3.6 V
Maximum Operating Current	70 mA
Response Time	0–10 s
Operating Temperature	-10–60 ℃
Storage Temperature	-30–80 ℃
Operating Humidity (Non-condensing)	5%–80% RH
Storage Humidity (Non-condensing)	0%–95% RH
Particle Mass Concentration Accuracy (0–100 μg/m³)	±10 μg/m³
Particle Mass Concentration Accuracy (≥100 μg/m³)	±10%
Weight	55 g

Size (unit: mm)

PM2.5 air quality sensor size

Air Quality Instructions

PM2.5 air quality sensor air condition instruction

Coal pollution and tailpipe pollution can harm the respiratory system.
High levels of particulate matter pollution in large and medium-sized cities can lead to acidic rainfall.
The impact of new urban development on air quality is emphasizing the “greenhouse effect”.

Wiring Instructions

PM2.5 air quality sensor interface

PIN	Signal Name	Description
PIN1	VCC	Power positive 5V
PIN2	VCC	Power positive 5V
PIN3	GND	Power negative
PIN4	GND	Power negative
PIN5	NC	-
PIN6	PWM	PWM pulse width signal output pin (3.3 V logic level)
PIN7	RXD	UART RX pin (3.3V logic level)
PIN8	Reservations (NC)	No connection
PIN9	TXD	UART TX pin (3.3V logic level)
PIN10	SET	Low level: POWERDOWN; high level or floating: normal operation

Applications

PM2.5 air quality sensor application

Tips: What should be considered during installing the laser PM2.5 air quality sensor?

Ensure that the laser PM2.5 air quality sensor is installed in a location with stable and unobstructed airflow. The air inlet and outlet of the sensing chamber must remain clear, as any blockage may affect sampling efficiency and measurement accuracy.
Avoid placing the laser particulate matter sensor in environments with heavy dust, oil mist, water vapor, or condensation, as these conditions may contaminate the optical chamber and interfere with laser scattering detection.
Do not install in areas exposed to corrosive gases or chemical vapors, which may damage internal optical components and reduce long-term reliability.
It is recommended to keep the air quality sensor away from heat sources and high-humidity zones, ensuring a stable operating environment for consistent performance.
For optimal accuracy, install in a well-ventilated, clean airflow channel with minimal turbulence or sudden pressure changes.

Existing reviews of Laser PM2.5 Air Quality Sensor

Good Laser PM2.5 Air Quality Sensor

I recently purchased this Laser PM2.5 Air Quality Sensor and I am really satisfied! Firstly, its design is very exquisite and the operation is also very simple. Whether used indoors or outdoors, it can quickly and accurately detect the concentration of PM2.5 in the air, with a clear and intuitive display screen at a glance. What particularly impressed me was its laser sensing technology, which produced very accurate detection results that were almost consistent with professional air quality monitoring instruments. This allows me to better understand air quality in my daily life and take timely measures to protect my health. In addition, its response speed is very fast, with almost no delay, and it can track changes in air quality in real time. Whether at home, in the office, or in the car, it is very convenient to use. Especially on days with poor air quality, it can help me take timely purification measures to avoid inhaling harmful substances. Overall, this laser PM2.5 air quality sensor not only has excellent performance, but also has very stable quality. For those who are concerned about air quality and health protection, it is definitely a good product worth buying! Highly recommended!

From: Krstert | Date: 25/12/2024

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