Specifications
Function
Range
Resolution Accuracy
0 to 5000ppm
1 ppm
±(5%rdg + 30ppm)
CO
2
5001 to
9999ppm
1 ppm
Not specified
Pressure dependence: +1.6% of reading per kPa
deviation from
normal pressure (100kPa)
<100 ppm
1 ppm
±(10ppm)
CO
101 to 500 ppm 1 ppm
±(10%rdg)
501 to 1000 ppm 1 ppm
±(20%rdg)
Temperature
-20 to 60°C
0.1°
±0.6°C
-5 to 140°F
0.1°
±0.9°F
Humidity
0.1 to 99.9%
0.1%RH
±3%(10 to 90%) @25°C
±5%(all other
ranges)@25°C
Wet Bulb
-5 to 59.9°C
0.1°
23 to 140°F
Calculated from RH and
Dew Point
-20 to 59.9°C
0.1°
Temperature
-4 to 140°F
Display
LCD with backlight
Display size
26 x 44 mm (1.0 x
1.7”)
Warm-up
period
30
seconds
Response
Time
CO
2
: <30 seconds (90% step change)
CO: <60 seconds (90% step change)
Tair: <2 minutes (90% step change)
RH: <10 minutes (90% step change)
Sensor Type
CO2: NDIR (non-dispersive infrared) technology
Humidity: Capacitance sensor
