Specification

GSM400 Air Quality CO2 Meter
• Simultaneously displays CO2, Temperature and Relative Humidity
• TWA (Time Weighted Average - 8 hours)
• STEL (Short Term Exposure Limit - 15 minute weighted average)
• NDIR (non-dispersive infrared) waveguide technology
• Backlit triple LCD display
• Min/Max records the highest and lowest readings
• Data Hold freezes the reading on the display
• User-adjustable CO2 alarm level
• °F/°C selectable
• Auto power off with disable
• Includes (4) AA batteries and carrying case
Monitor air quality in ofce buildings, schools,
exhibition halls, shopping malls, meeting rooms,
tness centers, restaurants and other public places.
Ordering Information:
GSM400 Air Quality CO2 Meter
Features:
Applications:
Handheld Meter Measures CO2, Temperature, Humidity, Wet Bulb and Dew Point
850 Perimeter Road • Manchester, NH • [phone] • [e-mail]
Specifications
Carbon Dioxide (CO2)
Accuracy
Air Temperature
Accuracy
Relative Humidity
Accuracy
Wet Bulb
Dew Point
CO2 Alarm
Power
Dimensions
Weight
0 to 9999ppm
±(5% + 30ppm) (0 to 5000ppm)
14 to 140°F (-10 to 60°C)
±0.9°F/0.6°C
0 to 99.9%RH
±3%RH (10 to 90%RH)
23 to 140°F (-5 to 60°C)
-4 to 140°F (-20 to 60°C)
100 to 9900ppm in 100ppm steps
4 AA batteries
7.9 x 2.7 x 2.3” (200 x 70 x 57mm)
6.7oz (190g)