This HOBO Pendant® data logger is a miniature, waterproof two-channel temperature and relative light level data logger. The 8K model comes at a great value and is suitable for indoor, outdoor, and underwater applications. This logger holds approximately 6.5K of 10-bit readings. Use a solar radiation shield for accurate temperature measurement in sunlight. See RS1 Solar Radiation Shield (assembly required) and M-RSA (pre-assembled) Solar Radiation Shield. Note that using a solar radiation shield prevents the use of the light sensor.
Manufactured by: Onset
Model: HOBO 8K Pendant Temperature/Light Data Logger - UA-002-08
Light intensity
Soil temperature
Temperature
Water temperature
| 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) |
| 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 |