The CDM7160 module is a CO2 pre calibration module carefully designed by Figaro in Japan. It adopts the single light source dual wavelength principle of NDIR, and the dual sensors detect two wavelengths emitted by one light source respectively. It can correct pollution interference such as dust adhesion and maintain long-term stability without maintenance. It is a good choice for CO2 control and monitoring in many fields such as home, agriculture, and commerce.

CMD7160 has the following main advantages and features:
① Small size: 32 * 17 * 7.2 (mm);
② Low power consumption: about 50mW;
③ High accuracy: ± (50ppm+3% full range);
④ Adopting single beam dual wavelength to ensure absolute measurement, no calibration required within 5 years;
⑤ Equipped with UART/I2C dual digital communication interface, it can be calibrated separately;
⑥ PWM output: 0-5000ppm duty cycle 0-100% CMOS output;

Basic parameters:
1) Range: 300-5000ppm;
2) Power consumption: 50mW average;
3) Working voltage: 4.75-5.25V DC;
4) Accuracy: ± (measured at 50ppm+3%) full range;
5) Working temperature: 0-50 ℃;
6) Response time: 2 minutes (diffusion);

Main application areas:
1) Automobile circulation ventilation device
2) Plant factories, agriculture and animal husbandry fields
3) Measurement and testing equipment for HEMS/BEMS
4) Laboratory research instruments, meters, and portable CO2 detection instruments and meters
5) Indoor air quality online monitoring system for hospitals, libraries, public infrastructure, etc