| Measurement range |
| Temperature |
-20° to 70°C (-4° to 158°F) |
| RH |
5% to 95% RH |
| Light intensity |
1 to 3000 footcandles (lumens/ft2) typical; maximum value varies from 1500 to 4500 footcandles (lumens/ft2) |
| Analog channels |
0 to 2.5 Vdc (w/CABLE-2.5-STEREO); 0 to 5 Vdc (w/CABLE-ADAP5); 0 to 10 Vdc (w/ CABLE-ADAP10); 4-20 mA (w/CABLE-4-20MA) |
| Accuracy |
| Temperature |
± 0.35°C from 0° to 50°C (± 0.63°F from 32° to 122°F), see Plot A |
| RH |
±2.5% from 10% to 90% RH (typical), to a maximum of ±3.5%, see Plot B |
| Light intensity |
Designed for indoor measurement of relative light levels, see Plot D for light wavelength response |
| External input channel (see sensor manual) |
± 2 mV ± 2.5% of absolute reading |
| Resolution |
| Temperature |
0.03°C at 25°C (0.05°F at 77°F), see Plot A |
| RH |
0.03% RH |
| Sample Rate |
| 1 second to 18 hours, user selectable |
| Drift |
| Temperature |
0.1°C/year (0.2°F/year) |
| RH |
<1% per year typical; RH hysteresis 1% |
| Response time in airflow of 1 m/s (2.2 mph) |
| Temperature |
6 minutes, typical to 90% |
| RH |
1 minute, typical to 90% |
| Time accuracy |
± 1 minute per month at 25°C (77°F), see Plot C |
| Operating temperature |
| Logging |
-20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing) |
| Launch/readout |
0° to 50°C (32° to 122°F), per USB specification |
| Battery life |
1 year typical use |
| Memory |
64K bytes (43,000 12-bit measurements) |
| Weight |
46 g (1.6 oz) |
| Dimensions |
58 x 74 x 22 mm (2.3 x 2.9 x 0.9 inches) |
| CE The CE Marking identifies this product as complying with all relevant directives in the European Union (EU) |