Specification

GSM450 Carbon Monoxide/Carbon Dioxide IAQ Meter
• Manually step through CO, CO2, Temperature, Humidity,
Wet Bulb and Dew Point to display each reading
• Large backlit LCD display
• TWA (Time Weighted Average - 8 hours)
• STEL (Short Term Exposure Limit - 15 minute weighted average)
• NDIR (non-dispersive infrared) waveguide technology
• 80dB user-adjustable CO alarm setting
• Real time clock
• Min/Max and Data Hold
• °F/°C selectable
• Auto power off with disable
• Manually store/recall up to 99 readings
• Datalog up to 32,000 readings
• Includes (4) AA batteries, mini USB cable, software and carrying case
• One year warranty
Monitor air quality in ofce buildings, schools, exhibition halls, shopping malls,
meeting rooms, tness centers, restaurants and other public places
Ordering Information:
GSM450 Carbon Monoxide/Carbon Dioxide IAQ Meter
Features:
Applications:
Measures CO, CO2, Temperature, Humidity, Wet Bulb and Dew Point
850 Perimeter Road • Manchester, NH • [phone] • [e-mail]
Specifications
Carbon Monoxide (CO) 0 to 1000ppm
±10ppm (<100ppm);
Accuracy ±10% (101-500ppm);
±20% (>500ppm)
Carbon Dioxide (CO2) 0 to 9999ppm
Accuracy ±(30ppm +5% rdg)
Air Temperature -4 to 140°F (-20 to 60°C)
Accuracy ±1.0°F/0.6°C
Relative Humidity 1 to 99.9%RH
Accuracy ±3%RH
Wet Bulb 23 to 140°F (-5 to 59.9°C)
Dew Point -4 to 140°F (-20 to 59.9°C)
Resolution 1ppm; 0.1°F/°C; 0.1%RH
Memory Manually store/recall 99 readings
Datalogging 32,000 readings
Power 4 AA Batteries
Dimensions 7.9 x 2.7 x 2.3” (200 x 70 x 57mm)
Weight 6.7oz (190g)