Measurement Range |
Temperature |
-20° to 70°C (-4° to 158°F) |
Light |
0 to 320,000 lux (0 to 30,000 lumens/ft2) |
Accuracy |
Temperature |
± 0.53°C from 0° to 50°C (± 0.95°F from 32° to 122°F), see Plot A in manual |
Light intensity |
Designed for measurement of relative light levels, see Plot D in manual for light wavelength response |
Resolution |
Temperature |
0.14°C at 25°C (0.25°F at 77°F), see Plot A in manual |
Drift |
Less than 0.1°C/year (0.2°F/year) |
Response Time |
Airflow of 2 m/s (4.4 mph) |
10 minutes, typical to 90% |
Water |
5 minutes, typical to 90% |
Time accuracy |
± 1 minute per month at 25°C (77°F), see Plot B in manual |
Operating Range |
In water/ice |
-20° to 50°C (-4° to 122°F) |
In air |
-20° to 70°C (-4° to 158°F) |
Water depth rating |
30 m from -20° to 20°C (100 ft from -4° to 68°F), see Plot C in manual |
NIST traceable certification |
Available for temperature only at additional charge; temperature range -20° to 70°C (-4° to 158°F) |
Battery life |
1 year typical use |
Battery Type |
CR2032 |
Memory |
UA-002-08 |
8K bytes (approximately 3.5K combined temperature and light readings or events) |
UA-002-64 |
64K bytes (approximately 28K combined temperature and light readings or events) |
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Materials |
Polypropylene case; stainless steel screws; Buna-N o-ring |
Weight |
18 g (0.6 oz) |
Dimensions |
58 x 33 x 23 mm (2.3 x 1.3 x 0.9 inches) |
Environmental Rating |
IP68 |