Waterproof Data Logger for Water Temperature and Light
The HOBO Pendant® UA-002 is a miniature data logger with two channels, one for temperature, the other for relative light levels. The data logger is compact, light-weight & waterproof and records a large amount of data as well as internal logger events. Up to 52,000 values can be recorded.
HOBO UA Data Logger Series
The compact data loggers from HOBO can have two different measurement functions: Temperature or light and temperature measurements. The video explains the functions and details of the inexpensive & waterproof models and explains the advantages of the polypropylene housing. Also, find out more about freshwater and saltwater applications, battery details and optical communication, enabling fast data transfer in water.
Features of the HOBO Pendant UA-002
The HOBO Pendant UA-002 is suitable for a variety of indoor, outdoor and underwater applications. The light sensor can be used with both natural and artificial light sources.
Please note: An interface is required for configuration and reporting
- Low-cost temperature logger with alarm display
- Waterproof housing for wet or underwater use
- Data download in less than 30 seconds via the optical USB interface
Models
| UA-002-64 | 64 K memory for approx. 28,000 combined temperature and light measurements |
Literature
HOBOware
The HOBO Pendant® UA-002 data logger supports the free HOBOware graphics and analysis software. HOBOware allows you to easily view and analyze your recorded measurement data with just a mouse click. You can simply connect the data logger to your computer via cable.
Features and Technical Specifications
Pendant Temperature Data Logger UA-002-xx
| Monitoring Parameters | Light Intensity, Temperature and Water Temperature |
| Measurement Range | Temperature: -20 °C to +70 °C (-4 °F to +158 °F) Light: 0 to 320,000 lux (0 to 30,000 lumens/ft2) |
| Accuracy | Temperature: ±0.53 °C from 0 °C to +50 C (±0.95 °F from +32 °F to +122 °F) Light intensity: intended for the measurement of relative light values |
| Resolution | 0.14 °C at 25 °C |
| Drift | Less than 0.1 °C/year (0.2 °F/year) |
| Response Time | Airflow of 2 m/s (4.4 mph): 10 minutes, typically to 90% Water: 5 minutes, typically to 90% |
| Time accuracy | ±1 minute per month at +25 °C (+77 °F) |
| Operating Range | In water/ice: -20 °C to +50 °C (-4 °F to +158 °F) In air: -20 °C to +70 °C (-4 °F to +158 °F) |
| Water depth rating | 30 m between -20 °C and +20 °C (100 feet from -4 °F to 68 °F) |
| NIST traceable certification | Available for temperature only at an additional charge; temperature range -20 ° to +70 °C (-4 °F to +158 °F) |
| Battery Life | 1 year typical use |
| Memory | UA-002-64: 64KB (approximately 28K combined temperature and light measurements or events) |
| Materials | Polypropylene case; stainless steel screws; Buna-N o-ring |
| Size | 58 x 33 x 23 mm |
| Weight | 18.0 g |
| Protection class: | IP68 |
| For more detailed product specifications, please read the User’s Guide | |
BASE-U-4 - Universal Optic Base Station
The Universal Optic USB Base Station and couplers are used to offload data from any HOBO® data logger with an Optic USB interface. The splash-resistant Optic USB Base Station connects to your computer via USB, while connecting to the data logger via an appropriate coupler.
Literature and videos
HOBO Waterproof Shuttle - U-DTW-1
The HOBO Waterproof Shuttle provides convenient readout and relaunching of underwater and outdoor HOBO data loggers with an Optic USB interface, and is waterproof to 20 m. The HOBO Waterproof Shuttle can also be used as a base station.
Note 1: Couplers are included for compatibility with our U-series loggers with optical communication, including the UA Pendants, U20 water level, U22 Water Temp Pro, UTBI TidbiT, U23 Pro Temp/RH, U24 Conductivity and U26 DO data loggers.
Note 2: HOBOware Pro is required when using the U-DTW-1 Waterproof shuttle.