HOBO® Temp/RH 3.5% Data Logger (UX100-003) Manual
16209-E
The HOBO Temp/RH data logger records temperature and relative humidity (within 3.5%
accuracy) in indoor environments with its integrated sensors. Using HOBOware®, you can easily
configure the logger alarm to trip for specific high or low sensor readings. Or, you can set up burst
logging in which the logger records data at a different interval during certain conditions. The
logger can also calculate minimum, maximum, average, and standard deviation statistics. This
compact data logger has a built-in LCD screen to monitor the current temperature, relative
humidity, logging status, battery use, and memory consumption in between readouts.
Specifications
Temperature Sensor
Range -20° to 70°C (-4° to 158°F)
Accuracy ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F), see Plot A
Resolution 0.024°C at 25°C (0.04°F at 77°F), see Plot A
Response Time 4 minutes in air moving 1 m/s (2.2 mph)
Drift <0.1°C (0.18°F) per year
RH Sensor
Range 15% to 95%
Accuracy ±3.5% from 25% to 85% over the range of 15° to 45°C (59° to 113°F)
including hysteresis; ±5% from 25% to 95% over the range of 5° to
55°C (41° to 131°F) including hysteresis, see Plot B
Resolution 0.07% at 25°C (77°F) and 30% RH
Response Time 43 seconds to 90% in airflow of 1 m/s (2.2 mph)
Drift <1% per year typical
Logger
Logger Operating Range Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)
Launch/Readout: 0° to 50°C (32° to 122°F) per USB specification
Logging Rate 1 second to 18 hours, 12 minutes, 15 seconds
Logging Modes Normal, burst, or statistics
Memory Modes Wrap when full or stop when full
Start Modes Immediate, push button, date & time, or next interval
Stop Modes When memory full, push button, or date & time
Restart Mode Push button
Time Accuracy ±1 minute per month at 25°C (77°F), see Plot C
Battery Life 1 year, typical with logging rate of 1 minute and sampling interval of
15 seconds or greater
Battery Type One 3V CR2032 lithium battery
Memory 128 KB (84,650 measurements, maximum)
Download Type USB 2.0 interface
Full Memory Download Time 20 seconds
LCD LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly
or go blank in temperatures outside this range
Size 3.66 x 8.48 x 1.52 cm (1.44 x 3.34 x 0.6 in.)
Weight 30 g (1.06 oz)
Environmental Rating IP50
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).
HOBO Temp/RH 3.5%
Data Logger
UX100-003
Included Items:
• Command™ strip
• Double-sided tape
• Hook & loop strap
Required Items:
• HOBOware 3.4 or later
• USB cable (included with
software)
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General