Light 64K Data Logger/HOBO Pendant Temperature UA-002-64

Onset HOBO UA-002-64 Pendant Temperature/Light Data Miniature, Waterproof 64K 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 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) 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