The HOBO Pendant Temperature and Light Data Logger is a waterproof, two-channel logger with 10-bit resolution. It features a user-replaceable battery with a typical 1 year battery life, a fast 
sample rate of 1 second and a storage capacity of 3,500 Readings or 28,000 Readings depending on the version.
Available in 2 Versions
>> 3,500 Samples (#UA-002-8K)
>> 28,000 Samples (#UA-002-64K)
Required Software and Components
>> HOBOWare Software Kit
>> Optic Base Station or Waterproof Data Shuttle
NOTE: NIST Calibration is available.
Large Quantity Discounts Are Available!
Pendant Temperature Light Logger Features
- Designed for indoor, outdoor, and underwater measurement of relative light levels
- Water-resistant housing for underwater use - depths to 30 meters (100 feet)
- Eyelet with 0.32cm hole (0.13") for easy mounting with cable ties
- Battery level indication at launch
- Battery level can be recorded as separate channel
- Numerous event types (host PC connection, low battery, magnet presence) stored to data file during logging
- Offload data or check logger status while logging
- Requires HOBOware Software and Optic Base Station or Waterproof Shuttle
Pendant Temperature Light Logger Specifications
| Channels | (1) Internal Temperature Sensor (1) Light Sensor |
| Data Storage Capacity | UA-002-08: 3,500 Temperature & Light Samples UA-002-64: 28,000 Temperature & Light Samples |
| Sampling Intervals | User-selectable, 1 second to 18 hours |
| Temperature Range | -20° to 70°C (-4° to 158°F) |
| Temperature Accuracy | ±0.47°C (±0.85°F) at 25°C (77°F) |
| Temperature Resolution | 0.10°C (0.18°F) at 25°C (77°F) |
| Temperature Response Time | Airflow (1 m/s): 10 minutes, typical to 90% Water: 5 minutes, typical to 90% |
| Drift | Less than 0.1°C (0.2°F) per Year |
| Response Time | Airflow (2 m/s): 10 Minutes, typical to 90% Water: 5 Minutes, typical to 90% |
| Light Range | 0-30,000 lumens/ft2 (0 to 320,000 lux) |
| Light Intensity Accuracy | Designed for measurement of relative light levels, view HOBO Pendant Spectral Response graph |
| Operating Range | In Water/Ice: -20°C to 50°C (-4°F to 122°F) In Air: -20°C to 70°C (-4°F to 158°F) |
| Time Accuracy | ± 1 minute per month at 25°C (77°F) |
| Water Depth Rating | 30 m from -20°C to 20°C (100 ft from -4°F to 68°F) |
| Battery | User Replaceable CR2032 Type Lithium Battery |
| Battery Life | 1 Year Typical Use |
| Standards Compliance | CE |
| Weight | 18 g (0.6oz) |
| Dimensions | 58mm x 33mm x 23mm (2.3" x 1.3" x 0.9") |
Optic USB Base Station
- Optical Infrared Interface
- Easy USB connection to PC
- Includes All Couplers and USB Cable
Pendant Optic Base Station and Coupler
- Offloads and Relaunches Pendant Data Loggers in the Field
- Optical Infrared Interface
- Easy USB connection to PC
- Includes Coupler and USB Cable
Waterproof Shuttle Data Transporter
- Waterproof to 20 meters (66ft)
- Can be used as an Optic USB based station for HOBO Pendant loggers, HOBO Water Level Loggers, and HOBO Water Temp Pro V2 Loggers
- Allows for data readout under water while diving or snorkeling
- Rugged waterproof construction
- LEDs show offload and relaunch status