Descripción
HOBO by Onset U23-002A External Temperature/Relative Humidity Data Logger
- Weatherproof housing for use in outdoor or condensing environments
- High accuracy
- Replaceable Relative Humidity sensor provides fast response and superior recovery from condensing conditions
- Small-diameter external sensor versions for measurements in tight spaces
The HOBO Pro v2 External Temperature/Relative Humidity Data Logger is a weatherproof data logger with an external Temperature and Relative Humidity sensor on a 6-foot cable for fast sensor response and deployment in tight spaces. The Relative Humidity sensor features fast response and superior durability in humid environments, and is user-replaceable.
The HOBO Pro v2 logger’s environmentally rugged case is designed for years of reliable use in outdoor applications. It has enough memory to record over 42,000 12-bit measurements.
The logger uses an optical USB communications interface (via a compatible shuttle or base station) for launching and reading out the logger. The optical interface allows the logger to be offloaded without compromising the electronics. The USB compatibility allows for easy setup and fast downloads.
Manufacturer Specs
| Temperature Sensor | |
| Operation range Internal sensors | -40° to 70°C (-40° to 158°F) |
| External temperature sensor | -40° to 70°C (-40° to 158°F) |
| External sensors | -40° to 100°C (-40° to 212°F), with tip and cable immersion in fresh water up to 50°C (122°F) for one year |
| Accuracy | ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F) |
| Resolution | 0.02°C at 25°C (0.04°F at 77°F) |
| Response time (typical to 90%) | |
| U23-002A External temperature sensor | 5 minutes in air moving 1 m/sec |
| Stability (drift) | < 0.1°C (0.18°F) per year |
| Relative Humidity Sensor | |
| Operation range | 0-100% RH, -40° to 70°C (-40° to 158°F) Exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1% |
| Accuracy | ±2.5% from 10% to 90% RH (typical), to a maximum of ±3.5% including hysteresis. See Plot B for full range |
| Resolution | 0.03% |
| Response time (typical to 90%) | |
| U23-002A | 5 minutes in air moving 1 m/sec with protective cap |
| Stability (drift) | < 1% per year typical |
| Logger | |
| Operation range | -40° to 70°C (-40° to 158°F) |
| Real-time clock | ± 1 minute per month 0° to 50°C (32° to 122°F) |
| Battery | 1/2 AA, 3.6 Volt lithium, user-replaceable (part # HP-B) |
| Battery life (typical use) | 3 years with 1 minute or greater logging interval |
| Memory (non-volatile) | 64K bytes memory (approx. 21,000 temperature and RH measurements) |
| Materials All models | ASA styrene polymer housing and mounting clamp; polypropylene protective cap; Buna-N o-ring(s) U23-001, U23-002 only: ASA styrene polymer RH sensor cap; modified hydrophobic polyethersulfone membrane |
| Cables | |
| U23-002A | One 184 cm (6 ft.) PVC cable; sensor diameter 1 cm (0.38 in.) |
| Environmental rating | Electronics housing is NEMA 6P equivalent (tolerant of brief submergence) Units with RH sensors are NEMA 4 equivalent (splash-resistant) |
| Launch modes | Immediate start; delayed start |
| Logging interval | Fixed-rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations; logging intervals from 1 second to 18 hours (refer to HOBOware software manual) |
| Offload modes | Offload while logging; stop and offload |
| Battery indication | Battery voltage can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile |
| Weight | 118 g (3.1 oz) |
| Dimensions | Housing measures 10.2 × 3.8 cm (4.0 × 1.5 in.) |
| NIST certificate Temperature certificate available for additional charge | |
| The CE Marking identifies this product as complying with the relevant directives in the European Union (EU) | |
Tech Specs
Dataloggers / Data Acquisition/Dataloggers for Environmental Variables/Temperature Dataloggers Templ |
|
|---|---|
| Max Temperature | 70 C |
| Min Temperature | -40 C (-40 F) |
| Power Source | Battery |
| Battery Life | 3 YEARS (26280 HR) |
| Accuracy | ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F) |
| Software Included | Yes |
Test Equipment General Attributes |
|
| Unique Features | Weatherproof housing for use in outdoor or condensing environments High accuracy Replaceable Relative Humidity sensor provides fast response and superior recovery from condensing conditions |
| Safety Approval | CE |
| Interfaces I/O | USB |
| Product Weight | 118 GRAMS (0.260 LBS) |
| Product Height | 1.55 IN |
| Product Length | 5.60 IN |
| Product Width | 5.05 IN |
| Data Logging | Yes |
| HTS/Schedule B Number | 9027.80.8090 |
| ECCN Number | EAR99 |
| Battery Type | AA |
| Power Supply Voltage | Battery Powered |
| Country of Origin | United States |
| Shipping Height | 1.55 IN |
| Shipping Length | 5.60 IN |
| Shipping Width | 5.05 IN |
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