| Feature |
Range |
Display resolution |
Accuracy |
| Measured specifications |
| Temperature |
-5 °F to 140 °F
(-20 °C to 60 °C) |
0.1 °F
(0.1 °C) |
± 0.9 °C/± 1.62°F from 40 °C to 60 °C
± 0.5 °C/± 1.00°F from 5 °C to 40 °C
± 1.1 °C/± 1.98 °F from -20 °C to 5 °C |
| Relative humidity |
10 % to 90 % RH non-condensing |
1 % |
± 2 % RH (10 % RH to 90 % RH) |
| Air velocity |
0.25 fpm to 3000 fpm 0.25 m/sec to 15 m/sec |
1 fpm
(0.005m/sec) |
4 % or 4 fpm*
3 % or 0.015 m/sec* whichever is greater
*Accuracy specification only valid for velocity readings above 50 fpm. |
| CO2 |
0 to 5000 ppm |
1 ppm |
Warm up time 1 min (5 minutes for full specification) 2.75 % + 75 ppm |
| CO |
0 to 500 ppm |
1 ppm |
± 5 % or ± 3 ppm, whichever is greater, @ 20 °C and 50 % RH |
| Calculated specifications |
| Dew point temperature |
-44 °C to 57 °C
(-47 °F to 135 °F) |
0.1 °C
(0.1 °F) |
± 1 °C when temp: -20 °C to 60 °C RH: 40 % to 90 %
± 2 °C when temp: -20 °C to 60 °C RH: 20 % to 40 %
± 4 °C when RH: 10 % to 20 % |
| Wet bulb temperature |
-16 °C to 57 °C
(3 °F to 135 °F) |
0.1 °C
(0.1 °F) |
± 1.2 °C when RH: 20 % to 90 % temp: -20 °C to 60 °C
± 2.1 °C when RH: 10 % to 20 % |
| Volume flow rate (in a duct) |
0 to 3,965 M3/m (0 to 140,000 cfm) |
0.001 M3/min (1 cfm) |
N/A: The volume flow calculation will be a simple average of the data points times the duct area |
| % outside air (based on temperature) |
0 to 100 % |
0.1 % |
N/A |
| % outside air (based on CO2) |
0 to 100 % |
0.1 % |
N/A |
| General specifications |
| Operating temperature CO and CO2 sensors |
-20 °C to 50 °C (-4 °F to 122 °F) |
| Operating temperature All other functions |
-20 °C to 60 °C (-4 °F to 140 °F) |
| Storage temperature |
-20 °C to 60 °C (-4 °F to 140 °F) |
| Humidity |
10 % to 90 % (non-condensing) |
| Altitude |
Up to 2000 m (6562 ft) |
| Shock and vibration |
MIL-PRF-28800F: Class 2 |
| Multi-language interface |
English, French, Spanish, Portuguese and German |
| Battery |
Rechargeable Li-Ion (primary), three-AA (backup) |
| Data logging |
25,000 records (continuous), 99 records (discrete) |
| Warranty |
Two-years |
