GMM220 Carbon Dioxide Sensors

• Incorporates Vaisala CARBOCAP Sensor - the silicon based NDIR sensor
• Choice of everal measurement ranges
• IP65 (NEMA 4) protected probe against dust and spray water
• Interchangeable probes provide easy maintenance

Measurement range options

• GMM221 - 0 ... 2 %, 0 ... 3 %, 0 ... 5 %, 0 ... 10 %, 0 ... 20 %
• GMM222 - 0 ... 2000 ppm, 0 ... 3000 ppm, 0 ... 5000 ppm, for low concentrations - 0 ... 7000 ppm, 0 ... 10 000 ppm

Accuracy (incl. repeatability, non-linearity and calibration uncertainty)at +25 °C and 1013 hPa

• GMM221 ± (1.5 % of range + 2 % of reading) (applies for concentration above 2% of full scale)
• GMM222 ± (1.5 % of range + 2 % of reading)

Operating environment

• Temperature -20 ... +60 °C (-4 ... +140 °F)
• Pressure 700 ... 1300 hPa