PRODUCT OVERVIEW The SB-TEK Intelligent AQM System – Model SB-AQM2-IoT is a next-generation, cloud-connected air quality monitoring solution specifically designed for professional IoT laboratories, environmental research, and industrial-grade air monitoring applications. This system continuously records and displays real-time air quality data including particulate matter, pollutant gases, temperature, humidity, and barometric pressure. Built with advanced connectivity options such as Wi-Fi and 4G LTE, the SB-AQM2-IoT allows users to remotely access live and historical data from any computer or smartphone. Its rugged construction ensures reliable performance in extreme environmental conditions ranging from -20°C to +50°C and up to 99% humidity, making it suitable for both indoor and outdoor deployment. This intelligent AQM system includes four core sensors—particulate matter (PM), temperature, relative humidity, and barometric pressure—along with minimum three gas sensors. IoT Lab co
TECHNICAL SPECIFICATIONS
Particulate Matter (PM) Measurements
The device measures PM1, PM2.5, PM4, and PM10 with high accuracy and reliability.
• Measurement range: 0 to 1000 µg/m³.
• Resolution: 1 µg/m³
• Sensor lifetime: 10 years or more.
Resolution: 1 µg/m³
• Sensor lifetime: 10 years or more
• Accuracy for PM1 & PM2.5:
• ±5% (0–100 µg/m³)
• ±10% (100–1000 µg/m³)
• Accuracy for PM4 & PM10: ±25% (0–1000 µg/m³)
• Startup time: Less than 60 seconds
• Response time: Less than 30 seconds
• Acoustic emission: 24 dBA at 0.2m
• Long-term acoustic drift: +0.5 dB(A) per year
• Operating temperature: -20°C to 50°C
• Operating humidity: 20% to 99% RH (non-condensing)
• Operating barometric pressure: 300 to 1200 mbar.
Temperature, Humidity & Barometric Pressure Measurements Temperature:
• Range: -40°C to 85°C
• Accuracy: ±0.1°C (0–60°C), max ±0.3°C (-40–85°C)
• Resolution: 0.01°C
Relative Humidity:
• Range: 0% to 99% (non-condensing)
• Accuracy: Typical ±1%; max ±2% (0–90%), ±3% (91–100%)
• Resolution: 0.01%
Barometric Pressure:
• Range: 300 to 1200 mbar
• Accuracy: ±1 mbar (0–65°C)
• Resolution: 0.01 mbar
Gas Sensors Included
Carbon Monoxide (CO)
• Measurement range: 0–1000 ppm
• Maximum overload: 1000 ppm
• Accuracy: ?2 ppm
• Response time: Less than 30 seconds
• Repeatability: <1%
• Lower detectable limit: ?2 ppm
• Resolution: 0.1 ppm
• Expected lifetime: Over 5 years
• Operating temperature: -40°C to 55°C
• Operating pressure: 800 to 1200 hPa
• Operating humidity: 15% to 95%
• Cross sensitivities: Hydrogen at 20 ppm
Carbon Dioxide (CO?)
• Range: 400–5000 ppm
• Accuracy categories:
• ±(50 ppm + 2.5%) for 400–1000 ppm
• ±(50 ppm + 3%) for 1001–2000 ppm
• ±(40 ppm + 5%) for 2001–5000 ppm.
Repeatability: ±10 ppm
• Response time: 60 seconds
• Accuracy drift over 5 years: ±(5 ppm + 0.5%)
Formaldehyde (CH?O)
• Range: 0–5 ppm
• Maximum overload: 10 ppm
• Accuracy: ?0.05 ppm
• Response time: <120 seconds
• Repeatability: <1%
• LDL: ?0.05 ppm
• Resolution: 0.01 ppm
• Lifetime: Over 3 years
• Long-term drift: <1% per month
• Operating temperature: -20°C to 55°C
• Operating humidity: 15% to 95%
• Cross sensitivity to HCN, Hydrogen, and SO? within defined limits
Power Supply & Enclosure
• The system includes a standard AC/DC power adapter.
• Weatherproof enclosure protects sensors and electronics from rain, dust, and sunlight.
• Includes top cover, LED indicator, air inlet, air outlet, sensor probe connector, and power jack.
• LED indications:
• 0 – Device Initializing
• 1 – Normal Operation
• 2 – No Internet Connection
• 3 – Sensor Error
• 4 – Backup Storage Full
Software & Cloud Platform
The device offers seamless Wi-Fi configuration and cloud connectivity through a browser interface.
• To configure, user powers the device and connects via Wi-Fi using the default password provided in the manual.
• The configuration page loads automatically; alternatively, user can access 192.168.4.1 manually.
• Allows configuration of device name, user ID/email, time zone, log interval, and running average settings.
• Logging intervals available: 15 sec, 30 sec, 1 min, 5 min, 10 min, 15 min, 30 min, and 1 hour.
• Running average mode collects PM data every second and stores interval averages.
• Cloud panel displays all connected devices, model info, subscription status, and live data.
• Data summary includes minimum, maximum, and average values along with graphical charts.
• Includes options for device editing, firmware updates, renaming, erasing data, and downloading historic data.
“Quick Download” enables fast data export over a chosen time range.
• MicroSD card files can be downloaded without removing the card by reconnecting to device Wi-Fi and accessing the “Stored Data” page.
Accessories Included
• All required sensors and probes
• AC/DC power adapter
• Mounting bracket
• Screws, zip ties, double-sided tape, rawl plugs
• 32GB microSD card
• Printed operation manual
• SIM card for GSM/4G LTE operation.
