• Measures CO2 , CO, O2 , humidity and temperature 

• Non-dispersive infrared CO2 sensor 

• Galvanic cell CO and O2 sensors 

• Precision capacitance humidity sensor 

• Includes humidity probe, CO probe, CO2 probe, O2 probe, and hard carrying case 

• Records readings from 3 probes simultaneously 

• Audible alarm setpoint 

• Temperature is measured in °C or °F 

• Easy to read LCD with backlight • Data hold and Max/Min record 

• Real time data logger with integral 2GB SD memory card (OPTIONAL) 

• Just plug the SD card into the computer and it downloads directly to EXCEL 

• RS-232 and USB computer interface 

• Auto or manual power off

• CO2 Sensor: Non-dispersive infrared 

• Range: 0 to 4,000 ppm 

• Resolution: 1 ppm 

• Accuracy: ±40 ppm (<1,000 ppm), ±5% (>1,000 ppm 

• CO Sensor: Galvanic cell 

• Range: 0 to 1,000 ppm 

• Resolution: 1 ppm 

• Accuracy: ±(5% + 2 ppm) 

• O2 Sensor: Galvanic cell 

• Range: 0 – 30% O2 

• Resolution: 0.1% O2 

• Accuracy: ±(1% + 0.2% O2 ) Alarm Threshold: <18.0% O2 

• Humidity Sensor: Precision capacitive 

• Range: 5 to 95% RH 

• Resolution: 0.1% RH 

• Accuracy: >70%RH: ±(3% rdg + 1%RH); <70%RH: ±3%RH 

• Temperature Range: 0 to 50.0°C (32 to 122.0°F) 

• Resolution: 0.1°C/°F 

• Accuracy: ±0.8°C (±1.5°F) 

• Dew Point Temp. Range: -25.3 to 48.9°C (-13.5 to 120.1°F) 

• Wet Bulb Temp. Range: -21.6 to 50°C (-6.9 to 122.1°F) 

• Power Supply: 6 x 1.5V UM3/AA batteries 

• Dimensions/Weight: 177 x 68 x 45mm/350g; RH Probe: 197mm L; CO & O2 Probe: 150 x 38 x 38mm; CO2 Probe: 190 x 38 x 28mm