Air Quality Sensors

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Indoor Air Quality Sensor, WiFi/RS485 Output

SISCO-AQS-MG111

Indoor air quality sensor with WiFi/RS485 Output delivers precise, real-time monitoring of PM2.5, CO2, TVOC, and formaldehyde levels. Its dual-output design enables seamless data transmission to building management systems. Low power consumption and a wide 10-30V DC power range ensure flexible installation. The sensor provides instant alerts and historical data logging for effective ventilation management.

$276.34

Outdoor Air Quality Sensor, PM1.0/PM2.5/PM10

SISCO-AQS-3002-PM

Outdoor air quality sensor delivers precise measurements of PM1.0, PM2.5, and PM10 particulates across a 0~1000 μg/m3 range with 1 μg/m3 resolution. Pump-driven sampling ensures rapid response, while laser anti-attenuation technology maintains long-term stability without drift. The PM2.5 sensor achieves ±3 % FS accuracy, and calibration registers allow user adjustments for field fine-tuning.

$129.98

Smart Air Quality Sensor, CO2/CH2O/O2/CH4

SISCO-AQS-00802A

Smart air quality sensor monitors CO2, CH2O, O2, CH4, CO, and other gases in real time. It supports RS485, 4-20mA, 0-10V, Bluetooth, and WiFi outputs for flexible system integration. The 100x100x30mm ABS housing enables easy wall or ceiling mounting. Wide DC 10-30V input ensures continuous operation. Precision sensing delivers stable readings with 1-second updates.

$72.53

7-in-1 Air Quality Sensor Module, CO2/TVOC/PM2.5/PM10

SISCO-AQS-M701

7-in-1 air quality sensor module integrates CO2, TVOC, PM2.5, and PM10 detection with RS485 output. This CO2/TVOC/PM2.5/PM10 sensor module features electrochemical formaldehyde, laser particle, and NDIR CO2 technologies. The air quality monitoring sensor module operates on 5V DC, delivering real-time data on seven environmental parameters. The digital air quality sensor module displays all parameters instantly upon power-on, except TVOC requiring 2-minute warm-up.

$136.47

Home Air Quality Sensor, CO2/PM2.5/PM10

SISCO-AQS-CGDN1

Home air quality sensor is a compact indoor air quality monitor. It features a high-precision sensor updating CO2, PM2.5, PM10, temperature and humidity every second. The OLED display supports slide and tap controls. This smart air quality monitor integrates Apple HomeKit with a multi-color air quality indicator.

$198.66

WiFi Air Quality Sensor, CO2/HCHO/TVOC/PM2.5/PM10

SISCO-AQS-MT29

WiFi air quality sensor adopts semiconductor and infrared particle sensors. It detects CO2, HCHO, TVOC, PM2.5, PM10, CO, and AQI. Measurement ranges cover CO2 400-5000PPM, HCHO 0-1.99mg/m3, TVOC 0-9.99mg/m3, and PM2.5/PM10 0-999ug/m3. CO2 sensitivity is 1PPM, while PM2.5 sensitivity is 1ug/m3. A smart WiFi APP allows remote monitoring, real-time data viewing, and history curve checks. It also supports alarm threshold settings through the APP.

$123.85

IoT Air Quality Sensor, PM2.5/PM10, RS485

SISCO-AQS-2005

IoT air quality sensor measures PM2.5 and PM10 with a range of 0~1000 μg/m3 and a resolution of 1 μg/m3. The laser scattering principle ensures ±10% accuracy. It outputs an RS485 Modbus RTU signal to a PLC, features a waterproof, wall-mounted housing, fast response ≤30s. Its wall-mounted design simplifies installation. It also has a 10- 30 VDC power supply, < 60 s warm-up time, and operates from -10°C to +60°C.

$230.68

An air quality sensor, also known as a comprehensive air quality monitoring device, is designed to continuously detect and measure airborne pollutants and environmental conditions in real time. Depending on the model, it can monitor key parameters such as PM2.5, PM10, formaldehyde (HCHO), TVOC, and CO2, while also measuring environmental factors including temperature, humidity, and light intensity. Air quality sensors use various detection technologies, including electrochemical, catalytic combustion, and laser scattering principles, with measurement accuracy of up to ±10%. They are widely used for indoor and outdoor air quality monitoring, air purification equipment, fresh air ventilation systems, industrial emission monitoring, and occupational safety assessment.

Types and Detection Parameters of Air Quality Sensors

Air quality sensors come in different types based on their application, detection parameters, connectivity, and form factor. The available models cover indoor, outdoor, home, smart, wireless, and IoT applications, as well as sensor modules for system integration.

SKU	Main Detection Parameters	Key Features
SISCO-AQS-MG111	CO2, HCHO, CH4	WiFi or RS485, wall/ceiling mounted
SISCO-AQS-3002-PM	PM1.0, PM2.5, PM10, temperature, humidity	RS485, 4-20mA, 0-5V, or 0-10V
SISCO-AQS-CGDN1	CO2, PM2.5, PM10, temperature, humidity	WiFi, Bluetooth, display, smart home integration
SISCO-AQS-00802A	CO2, HCHO, O2, CH4 and other gases	Multi-gas detection, RS485, 4-20mA, 0-10V
SISCO-AQS-PV28	CO2, PM2.5, PM1.0, PM10, TVOC, HCHO, CO	Wireless/WiFi, APP support, rechargeable battery
SISCO-AQS-MT29	CO2, HCHO, TVOC, PM1.0/2.5/10/0.3, CO, AQI	WiFi APP remote monitoring, TFT display
SISCO-AQS-M701	CO2, HCHO, TVOC, PM2.5, PM10, temperature, humidity	Compact module, RS485 output, system integration
SISCO-AQS-2005	PM2.5, PM10	RS485 Modbus-RTU, laser scattering, wall-mounted

Key Detection Parameters

Particulate Matter: PM1.0, PM2.5, PM10, and PM0.3 sensors measure airborne particles of different sizes and are widely used for particulate matter and air pollution monitoring.
Gas Parameters: Depending on the model, air quality sensors can detect CO2, CO, formaldehyde (HCHO), TVOC, CH4, and O2. Multi-gas models can monitor several gases simultaneously.
Environmental Parameters: Some models also measure temperature and humidity to provide a more comprehensive view of indoor or outdoor air conditions.
Connectivity: For data transmission and system integration, available interfaces include WiFi, wireless, Bluetooth, RS485/Modbus, 4-20mA, and 0-10V.

Air Quality Sensor Applications

Air quality sensors are widely used for real-time air quality monitoring in residential, commercial, industrial, and outdoor environments. Depending on the sensor type and detection parameters, they can help monitor pollutants, evaluate environmental conditions, and support ventilation and air quality management.

Indoor Air Quality & Home Monitoring
Air quality sensors are commonly used in homes, offices, schools, and commercial buildings to monitor indoor environmental conditions. Depending on the model, they can detect CO2, PM2.5, PM10, formaldehyde (HCHO), TVOC, temperature, and humidity, helping users identify changes in indoor air quality and optimize ventilation.
Workplace & Occupational Safety
In workplaces and other occupational environments, air quality monitoring sensors can be used to detect airborne particles and specific gases. Measurements of parameters such as CO2, CO, HCHO, TVOC, and particulate matter can support workplace air quality assessment, pollutant monitoring, and occupational safety management.
Industrial & Environmental Monitoring
Air quality sensors are used in factories, environmental monitoring systems, and outdoor monitoring applications to measure particulate matter and selected gases. Models supporting PM1.0, PM2.5, PM10, and multiple gas parameters can provide real-time data for air pollution monitoring and environmental assessment.
Smart Buildings, HVAC & Ventilation Systems
Smart, WiFi, wireless, and IoT air quality sensors can be integrated into HVAC, fresh air ventilation, smart building, and building management systems. Real-time CO2, PM, temperature, and humidity data can be used to optimize ventilation, trigger alerts, and support intelligent indoor air quality management.
Public Spaces & Connected Monitoring Systems
Air quality sensors can also be deployed in public facilities, schools, commercial spaces, and connected environmental monitoring networks. With communication options such as WiFi, Bluetooth, RS485, and Modbus, sensor data can be transmitted to monitoring platforms for centralized data collection, remote monitoring, and air quality analysis.

How to Choose an Air Quality Sensor

Choosing the right air quality sensor depends on the application, pollutants to be measured, installation environment, and communication requirements. Consider the following factors before selecting an air quality monitoring device:

Choose by Application: Determine whether the sensor will be used for home, indoor, outdoor, workplace, industrial, or environmental monitoring. Indoor and home applications may prioritize compact or smart sensors, while outdoor and industrial applications typically require fixed installation and more robust communication options.
Choose by Detection Parameters: Select a sensor based on the pollutants you need to measure. Common parameters include PM1.0, PM2.5, PM10, CO2, CO, formaldehyde (HCHO), TVOC, CH4, and O2, while some models also measure temperature and humidity. Multi-parameter sensors are suitable when several air quality indicators need to be monitored simultaneously.
Choose by Connectivity: For integration with an air quality monitoring system, consider the required communication interface. WiFi and wireless air quality sensors are suitable for remote monitoring, while RS485/Modbus, 4-20mA, and 0-10V interfaces are more suitable for industrial equipment and building management systems.
Choose by Form Factor and Installation: Consider whether you need a wall-mounted or ceiling-mounted sensor, portable air quality monitor, or air quality sensor module. Fixed sensors are suitable for continuous monitoring, while portable models offer greater flexibility for home and on-site measurements.
Consider Accuracy and Measurement Range: Check the sensor's measurement range, resolution, accuracy, response time, and operating conditions to ensure it meets the requirements of your application. For applications requiring multiple measurements, compare the specifications of each parameter rather than evaluating the sensor by a single accuracy value.

FAQs

Q1: What does an air quality sensor measure?
A1: An air quality sensor measures specific pollutants or environmental parameters in the air. Depending on the sensor type, detection parameters may include PM1.0, PM2.5, PM10, CO2, CO, HCHO, TVOC, temperature, and humidity. A multi-parameter sensor can monitor several indicators simultaneously.

Q2: What type of air quality sensor is suitable for home use?
A2: A home air quality sensor can be selected based on the parameters that need to be monitored. Models that measure CO2, PM2.5, PM10, temperature, and humidity are commonly used for indoor air quality monitoring. WiFi or Bluetooth connectivity can be considered when remote monitoring or smart home integration is required.

Q3: What factors should be considered when choosing an air quality sensor?
A3: Selection should be based on the application environment, detection parameters, measurement range, accuracy, installation method, and communication interface. For example, indoor applications may require wall-mounted or portable models, while industrial and building monitoring systems may require RS485/Modbus, 4-20mA, or 0-10V outputs.