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CozIR®-LP3 CO2 Sensor


The CozIR®-LP3 CO₂ sensor uses proprietary solid-state LED technology to achieve unrivalled low-power consumption, making it suitable for a range of applications including battery-powered and wirelessly connected devices.

The CozIR®-LP3 provides the user with extensive flexibility, a choice of UART or I²C control interfaces, digital and analogue CO₂ measurements, and a fail-safe digital alarm level monitor.

The CozIR®-LP3 includes on-board power management, allowing the user to control sensor power consumption during measurements and when the sensor is inactive. The user can reduce active current consumption to <1µA without switching to another sensor.

The low height form factor, small footprint and flexible mounting options make the CozIR®-LP3 ideal for applications where space is at a premium.

The CozIR®-LP3 is designed to run fully autonomously with automatic self-checking and auto-zeroing, enabling the sensor to operate for long periods with no user intervention.


  • Ultra-low-power CO₂ sensor, <3.5mW average
  • 30ppm (typ.) measurement accuracy
  • Solid state LED optical technology
  • UART or I²C control and data interface
  • Analogue and digital CO₂ measurement outputs
  • On-board power management, <3µW quiescent
  • User programmable CO₂ level alarm
  • Built-in auto-zero function


  • Indoor Air Quality (IAQ)
  • IoT and Smart Technology with wireless connectivity
  • Demand-Controlled Ventilation (DCV) systems
  • Building Management Systems (BMS)
  • Air Quality and HVAC Systems


CozIR®-LP3 Data Sheet, Revision 4.8
pdf - 1068 KB
CozIR®-LP3 Product Flyer, Revision 1.8
Product Flyer
pdf - 669 KB
CozIR®-LP3 Sensor Evaluation Board Product Flyer Revision 1.0
Product Flyer
pdf - 387 KB
CozIR®-LP3 Sensor Evaluation Board User Guide, Revision 1.6
Evaluation Kits
pdf - 891 KB
zip - 1100 KB