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Gas Sensors

CRIR Series

Standard range of 400 ppm to 2000 ppm, up to 10000 ppm extended range. Accuracy of ±40 ppm ±3% of reading and ±50 ppm ±5% of reading

CRIR E1

Distributor Inventory

The CRIR Series are single channel, non-dispersive infrared (NDIR) sensors. Within the CRIR M1 and CRIR E1 is a sensing chamber with an infrared source at one end and a detector fitted with an optical filter at the other end. The source emits radiation at wavelengths which include the absorption band of CO2.

The filter blocks wavelengths which are not sensitive to the presence of CO2, thereby increasing selectivity and sensitivity. As the light passes through the sensing chamber, a fraction is absorbed if CO2 is present. The difference between the light emitted by the source and received by the detector can then be converted to a CO2 concentration reading.

The Automatic Baseline Correction (ABC) function can automatically calibrate the sensor’s lowest reading over a pre-configured interval to 400 ppm CO2. This enhances long term stability and may eliminate the need for calibration.

Value to Customers
  • Small size
  • Maintenance free for normal indoor applications
  • Enhanced long term stability
  • Higher accuracy:
    • CRIR M1: ±40 ppm ±3% of reading
    • CRIR E1: ±50 ppm ±5% of reading
  • Consistency and repeatability
  • Easy integration
Features
  • Single channel, non-dispersive infrared technology
  • Automatic Baseline Correction
  • Temperature compensation
  • UART digital interface
Potential Applications
  • HVAC, demand controlled ventilation
  • Indoor air quality (IAQ) measurement
  • Air purification systems
  • Smart /IoT (Internet of Things) systems
Data Sheet
Name
Description
File Size
Date
Size
CRIR E1 Commercial Carbon Dioxide Sensor Datasheet
199.25 KB
9/10/2020
PDF 199.25 KB
CRIR M1 Commercial Carbon Dioxide Sensor Datasheet
230.03 KB
9/10/2020
PDF 230.03 KB
Technical Note
Name
Description
File Size
Date
Size
CRIR M1 lowres photo
19.66 KB
9/10/2020
19.66 KB
CRIR M1 highres photo
137.06 KB
9/10/2020
137.06 KB
CRIR E1 lowres photo
19.37 KB
9/10/2020
19.37 KB
CRIR E1 highres photo
107.79 KB
9/10/2020
107.79 KB
Manuals and Guides
Name
Description
File Size
Date
Size
CRIR E1 Commercial Carbon Dioxide Sensor User Guide
373.52 KB
9/10/2020
PDF 373.52 KB
CRIR M1 Commercial Carbon Dioxide Sensor User Guide
368.05 KB
9/10/2020
PDF 368.05 KB
Name
Description
File Size
Date
Size
CRIR E1 Commercial Carbon Dioxide Sensor Datasheet
199.25 KB
9/10/2020
PDF 199.25 KB
CRIR M1 lowres photo
19.66 KB
9/10/2020
19.66 KB
CRIR E1 Commercial Carbon Dioxide Sensor User Guide
373.52 KB
9/10/2020
PDF 373.52 KB
CRIR M1 highres photo
137.06 KB
9/10/2020
137.06 KB
CRIR M1 Commercial Carbon Dioxide Sensor User Guide
368.05 KB
9/10/2020
PDF 368.05 KB
CRIR E1 lowres photo
19.37 KB
9/10/2020
19.37 KB
CRIR E1 highres photo
107.79 KB
9/10/2020
107.79 KB
CRIR M1 Commercial Carbon Dioxide Sensor Datasheet
230.03 KB
9/10/2020
PDF 230.03 KB