Air Analyzer 2: USB, CO2 (carbon dioxide) concentration, temperature and humidity sensor, 400-5,000ppm

Features

• Equipped with a high-precision CO₂ sensor module from Sensirion, ensuring stable and reliable measurements.
• Includes a controllable LED indicator to visually convey status and information to users.
• Comes with the utility software “TD-AppKit”, enabling real-time graph visualization and data logging/export in CSV format (Windows only).
• Provides simple control commands compatible with Windows and Linux, allowing easy integration into applications.
• Operates via USB bus power, making it usable with board computers such as Raspberry Pi and Armadillo.
• Multiple devices can be controlled from a single PC; dozens of units can be connected using a USB hub.
• Designed in Japan. Mass production, customization, and support services are available.

Example Applications

• Indoor environment monitoring
• CO₂ concentration monitoring in greenhouse cultivation
• Environmental sensing in plant factories
• Nursing care / monitoring systems
• Security applications (intrusion detection using CO₂ levels)

How to Use Control Commands

The device uses Tokyo Devices’ standard control command interface,“TD-USB.” When executed, the command outputs CO₂ concentration (ppm), temperature (°C), and humidity (%RH).

(Get values from the sensor)
> td-usb tdsn7300 get
653,25.4,42.2

(Get values every 60 seconds)
> td-usb tdsn7300 get --loop=60000
653,25.4,42.2
655,25.4,42.4
651,25.3,42.8
....

(Log data to a CSV file)
> td-usb tdsn7300 get --loop=60000 > log.csv

(Turn on the LED)
> td-usb tdsn7300 set 1

To integrate with user applications, call TD-USB as an external command from your program. It can be used with Python, shell scripts, C#, LabVIEW, and more. Refer to the TD-USB documentation for integration examples.

You can also visualize data using the demo application “TD-AppKit” (Windows only).

Package Contents

• Sensor unit ×1
• USB cable ×1

Specifications