COZIR: Ultralow power carbon dioxide sensor module

Wide Range for industrial applications and Ambient for HVAC and IAQ applications

COZIR is an ultralow power (3.5 mW), high performance CO2 sensor module, ideally suited for battery operation and portable instruments. Based on patented IR LED and detector technology and innovative optical designs, COZIR is the lowest power NDIR sensor available. The obvious uses of the COZIR sensor module are for battery-operated or autonomous gas sensor devices, where power usage optimization is the key parameter.

The COZIR family of sensor modules includes a branch for industrial applications (Wide Range) and a branch for HVAC and IAQ applications (ambient). Optional in-situ temperature and humidity sensors are available for both branches.

The COZIR Wide Range sensor modules are available with 0…5 %, 0…20 %, 0…60 % and 0…100 % CO2 measurement ranges. The output from the sensor module is a simple Tx/Rx UART interface, but the COZIR Wide Range sensor module is also configurable with an analogue voltage output. The Ambient sensor modules are available with zero…2000 ppm, 0…5000 ppm and 0…1% CO2 measurement ranges. The output from the sensor module is a Tx/Rx UART interface. Both the COZIR Wide Range and the COZIR Ambient has a warm-up time < 10 seconds, and the time to first signal reading is an impressively short 1.2 seconds.

The COZIR Ambient is highly recommended for IAQ applications. Combined with a VOC gas sensor module (for instance the MiCS-VZ-86/89 series) the design of autonomous or battery operated IAQ gas transmitters is becoming attractive from the point of view of power management and reliable output.

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