Cubic CM Series

CM Series NDIR Sensors

CO2 sensors with NDIR (Non-dispersive infrared) technology.

Supplier: Cubic Sensor and Instrument Co. Ltd

Technology type: CO2 Sensors

NDIR technology represents a reliable and accurate method to measure CO2 concentration in the air. The measurement principle is based on the light absorption at specific wavelengths due to gas presence. The key advantage is that there is a negligible cross-sensitivity to other gases/humidity, which is a common problem for traditional semiconductor / electrochemical cells.

NDIR sensors provide a very long, reliable life expectancy.

The CM series have single, dual-beam and a new ‘dual-IR’ structure. In the ‘dual-IR’ structure two IR light sources are present, so that longer lifetime, less drift and better stability is achievable.

Range features

A high level overview of what this range offers

  • High accuracy, long life (>10 years estimated)
  • No need for re-calibration/maintenance
  • Single beam (one IR emitter and one detector) or dual-beam (one IR emitter and two detectors, one for measurement and one for reference)
  • Available new ‘dual-IR’ structure for even longer life-time expectation (more than 15yrs)
  • PWM/UART/I2C signal output
  • Connector for PCB mounting with easy installation
  • UART, I2C, PWM output
  • Super low-power version available for battery operation in portable instruments
  • Small size
  • Typical applications are for automatic ventilation systems for HVAC, Indoor air quality monitors, iot devices, smart agriculture, air purifier

What's in this range?

All the variants in the range and a comparison of what they offer

Model Measurement range Internal structure Accuracy Consumption Communication protocol
CM1106-C 400-5000ppm Single beam (with ABC logic) +/- (50ppm + 5% reading) <45mA @ 1s UART / I2C / PWM
CM1106LS 400-5000ppm Single beam (with ABC logic) +/- (50ppm + 5% reading) <35mA @ 1s UART / I2C / PWM
CM1106SL-N 0-5000ppm Single beam (with ABC logic) +/- (50ppm + 5% reading) <30uA @ 2min UART
CM1107N 400-5000ppm Dual beam ± (50ppm+3% of reading) <50mA @ 1s UART / I2C / PWM
CM1109 400-5000ppm Dual IR +/- (50ppm + 5% reading) <70mA @ 1.25s UART / I2C / PWM
CM1106H-NS PWM:0-2000ppm, UART: 0-10,0000ppm Single beam (with ABC logic) +/- (30ppm + 3% of reading) <50mA @ 1s UART, TTL, PWM
CM1106S-W 0-5000ppm Single beam (with ABC logic) +/- (50ppm + 3% of reading) <20mA @ 1s UART, TTL, I2C
CM1106SL-NS 0-5000ppm Single beam (with ABC logic) +/- (50ppm +5% of reading) <37uA UART, TTL, I2C
CM1107NS 0-1000ppm Dual beam +/- (30ppm + 3% of reading) <50mA @ 1s UART, TTL, I2C, PWM
CM1107H 0-5% vol Dual beam +/- (0.02%, +10% of reading) <50mA @ 1s UART, TTL, I2C
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