| Measured specifications |
| Temperature |
| Range | -20°C to 50°C (-5°F to 122°F) | | Display resolution | 0.1°C (0.1°F) | | Accuracy | ± 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 | |
| Range |
-20°C to 50°C (-5°F to 122°F) |
| Display resolution |
0.1°C (0.1°F) |
| Accuracy |
± 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 |
| Range | 10 % to 90 % RH, non-condensing | | Display Resolution | 1% | | Accuracy | ± 2 % RH (10 % RH to 90 % RH) | |
| Range |
10 % to 90 % RH, non-condensing |
| Display Resolution |
0.01 |
| Accuracy |
± 2 % RH (10 % RH to 90 % RH) |
| Air velocity |
| Range | 50.0 fpm to 3000 fpm 0.25 m/sec to 15 m/sec | | Display Resolution | 1 fpm (0.005m/sec) | | Accuracy | ±4 % or 4 fpm* ±4 % or 0.02 m/sec* whichever is greater *Accuracy specification only valid for velocity readings above 50 fpm. | |
| Range |
50.0 fpm to 3000 fpm 0.25 m/sec to 15 m/sec |
| Display Resolution |
1 fpm (0.005m/sec) |
| Accuracy |
±4 % or 4 fpm* ±4 % or 0.02 m/sec* whichever is greater *Accuracy specification only valid for velocity readings above 50 fpm. |
| CO2 |
| Range | 0 to 500 ppm | | Display Resolution | 1 ppm | | Accuracy | ± 5 % or ± 3 ppm, whichever is greater, @ 20°C and 50 % RH | |
| Range |
0 to 500 ppm |
| Display Resolution |
1 ppm |
| Accuracy |
± 5 % or ± 3 ppm, whichever is greater, @ 20°C and 50 % RH |
| Calculated specifications |
| Dew point temperature |
| Range | -44°C to 50°C, (-47°F to 122°F) | | Display Resolution | 0.1°C (0.1°F) | | Accuracy | ± 1°C when temp: -20°C to 50°C RH: 40 % to 90 % ± 2°C when temp: -20°C to 50°C RH: 20 % to 40 % ± 4°C when RH: 10 % to 20 % | |
| Range |
-44°C to 50°C, (-47°F to 122°F) |
| Display Resolution |
0.1°C (0.1°F) |
| Accuracy |
± 1°C when temp: -20°C to 50°C RH: 40 % to 90 % ± 2°C when temp: -20°C to 50°C RH: 20 % to 40 % ± 4°C when RH: 10 % to 20 % |
| Wet bulb temperature |
| Range | -16°C to 50°C, (3°F to 122°F) | | Display Resolution | 0.1°C, (0.1°F) | | Accuracy | ± 1.2°C when RH: 20 % to 90 % temp: -20°C to 60°C ± 2.1°C when RH: 10 % to 20 % | |
| Range |
-16°C to 50°C, (3°F to 122°F) |
| Display Resolution |
0.1°C, (0.1°F) |
| Accuracy |
± 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) |
| Range | 0 to 3,965 M3/m, (0 to 140,000 cfm) | | Display Resolution | 0.001 M3/min, (1 cfm) | | Accuracy | N/A: The volume flow calculation will be a simple average of the data points times the duct area | |
| Range |
0 to 3,965 M3/m, (0 to 140,000 cfm) |
| Display Resolution |
0.001 M3/min, (1 cfm) |
| Accuracy |
N/A: The volume flow calculation will be a simple average of the data points times the duct area |
| % outside air (based on temperature) |
| Range | 0 to 100% | | Display Resolution | 0.1 | |
| Range |
0 to 100% |
| Display Resolution |
0.1 |
| % outside air (based on CO2) |
| Range | 0 to 100 % | | Display Resolution | 0.1 % N/A | |
| Range |
0 to 100 % |
| Display Resolution |
0.1 % N/A |
| General specifications |
| Operating and storage temperature |
| -20°C to 50°C (-4°F to 122°F) |
|
| |
-20°C to 50°C (-4°F to 122°F) |
| Humidity |
| 10 % to 90 % (non-condensing) |
|
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10 % to 90 % (non-condensing) |
| Altitude |
|
| |
Up to 2000 m (6562 ft) |
| Shock and vibration |
|
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MIL-PRF-28800F: Class 2 |
| Multi-language interface |
| English, French, Spanish, Portuguese and German |
|
| |
English, French, Spanish, Portuguese and German |
| Battery |
| Rechargeable Li-Ion (primary), three-AA (backup) |
|
| |
Rechargeable Li-Ion (primary), three-AA (backup) |
| Data logging |
| 25,000 records (continuous), 99 records (discrete) |
|
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25,000 records (continuous), 99 records (discrete) |
| Warranty |
|
| |
Two-years |