HOBO® External Temp/RH Data Logger (UX100-023A) Manual
HOBO External
Temp/RH Data Logger
UX100-023A
Included Items:
• Command™ strip
• Double-sided tape
• Hook & loop strap
Required Items:
• HOBOware 3.7.16 or later
(download at
www.onsetcomp.com/
hoboware-free-download)
• USB cable
22934-A
The HOBO External Temp/RH data logger records temperature and relative humidity in an indoor
environment with its external sensor. 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
Accuracy
Resolution
Response Time
Drift
RH Sensor
Range
Accuracy
Resolution
Response Time
Drift
Cable Length
Logger
Logger Operating Range
Logging Rate
Logging Modes
Memory Modes
Start Modes
Stop Modes
Restart Mode
Time Accuracy
Power Source
Battery Life
Memory
Download Type
Full Memory Download Time
LCD
Size
Weight
Environmental Rating
-20° to 70°C (-4° to 158°F)
±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F), see Plot A
0.02°C (0.04°F)
3 minutes, 45 seconds in air moving 1 m/s (2.2 mph)
<0.1°C (0.18°F) per year
1% to 100% RH at -40° to 75°C (-40° to 167°F), non-condensing;
exposure to conditions below -20°C (-4°F) or above 95% RH may
temporarily increase the maximum RH sensor error by an additional
1%
±2.5% from 10% to 90% RH typical to a maximum of ±3.5% including
hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
0.01%
15 seconds to 90% in airflow of 1 m/s (2.2 mph)
<1% per year typical
1.83 m (6 ft)
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
1 second to 18 hours, 12 minutes, 15 seconds
Fixed interval (normal), burst, or statistics
Wrap when full or stop when full
Immediate, push button, date & time, or next interval
When memory full, push button, or date & time
Push button
±1 minute per month at 25°C (77°F), see Plot A
One 3V CR2032 lithium battery and USB cable
1 year, typical with logging rate of 1 minute and sampling interval of
15 seconds or greater
128 KB (63,488 measurements, maximum)
USB 2.0 interface
20 seconds
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
3.66 x 8.48 x 1.52 cm (1.44 x 3.34 x 0.6 in.)
30 g (1.06 oz)
IP50
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).