TSPD003
Product Overview
The TSPD003 is a CO₂ gas detection sensor based on the photoacoustic spectroscopy (PAS) effect, integrating a blackbody chip, a high-sensitivity microphone element, and an MCU controller. The blackbody chip emits infrared radiation at a specific wavelength; within the relatively sealed photoacoustic cell, this infrared light is resonantly absorbed by CO₂ molecules, generating a weak pressure signal. A high-sensitivity microphone detects the pressure variations in the photoacoustic cell, and the built-in MCU algorithm processes these signals to output the current CO₂ concentration.
The TSPD003 features a compact form factor, and its external MCU can communicate with the device via either the I²C or UART interface to read the CO₂ concentration output or to configure the device.
Product Applications
- HVAC/Fresh Air System
- Household appliances
- Smart Home
- Air purification
- Smart Cabin
- Agricultural cultivation
- Industrial Environmental Monitoring
Product Information
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Parameters Test Conditions Minimum value Typical value Maximum value Unit Technical Principle PAS (Photoacoustic Spectroscopy) CO₂ concentration range 0 32000 parts per million Accuracy 400~5000 ppm ±30 ppm ±3% of reading parts per million Communication Interface I²C/UART Size 16.8×17.5×8.1 cubic millimeters Operating temperature range 0 50 degrees Celsius