Part 01 Common Industry Challenge: Balancing Size and Accuracy
Teams developing environmental monitoring equipment often face the same challenge:
- Thermal Conductivity CO₂ Sensors: Low cost and compact size, but relatively large measurement errors. The output data is often insufficient to support precise device linkage and closed-loop control applications.
- Conventional NDIR Infrared Modules: Meet accuracy requirements, but their overall size is too large for fresh air control panels, portable detectors, and compact smart home devices.
TSPD003 is developed based on PAS (Photoacoustic Spectroscopy) technology, achieving an ideal balance between ultra-compact size and professional-grade detection accuracy, providing a new domestic solution for miniaturized devices.
Part 02 Five Core Advantages
- High-Accuracy and Stable Detection with Flexible Measurement Range Expansion
Standard range: 400–5000 ppm, expandable up to 0–32000 ppm as required. Accuracy within the standard range reaches ±30 ppm ±3% of reading, with 1 ppm resolution. Compared with thermal conductivity sensors, it offers significantly improved interference resistance and data stability. Reliable and accurate data output makes it suitable for demanding applications such as indoor air quality monitoring, agricultural greenhouses, and livestock farming, enabling direct control of fans, air conditioners, and irrigation systems.
- Ultra-Compact Size Maximizes Internal Device Space
The module measures only 16.8 × 17.5 × 8.1 mm, much smaller than mainstream NDIR infrared CO₂ sensors on the market. It provides greater flexibility in internal product design and is ideal for wall-mounted air quality monitors, fresh air control panels, handheld analyzers, and other space-constrained devices.
- Customizable Sampling Interval with Flexible Power Consumption Control
Sampling intervals are fully adjustable from 5 to 3600 seconds, offering maximum development flexibility.
Short 5-second high-speed sampling: suitable for real-time online monitoring devices.
Long sampling intervals of thousands of seconds: significantly reduce system power consumption, ideal for battery-powered portable equipment.
- Dual I2C + UART Communication Interfaces Reduce Development Time
Dual standard communication interfaces are compatible with most MCU controllers on the market. Easy debugging and low integration barriers help shorten the development cycle from prototype testing to mass production.
Power Supply and Operating Environment Specifications:
- Main supply: DC 3.3V ±0.3V
- Blackbody supply: DC 7V
- Standard operating temperature range: 0°C to 50°C; Extended operating temperature range: -10°C to 60°C
- First Domestic Supplier to Achieve Mass Production
Breaking the monopoly of overseas suppliers and enabling localized production of PAS photoacoustic CO₂ sensors.
Part 03 Application Scenarios
Part 04 Product Specifications Overview
Part 05 Conclusion
If your project is looking for a compact, high-accuracy, and easy-to-develop domestic CO₂ sensing module, TSPD003 is a highly cost-effective new option. It combines compact size, excellent detection performance, and development convenience, aligning perfectly with the trend toward miniaturized intelligent environmental monitoring devices.
Need a complete datasheet, sample evaluation, or customized development for specialty gas detection? Feel free to contact us via direct message or leave a comment. We will provide a one-to-one customized detection solution for your project.