HOBO Data Loggers 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 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 (download at www.onsetcomp.com/ hoboware-free-download) • USB cable Temperature Sensor Range Accuracy Resolution Response Time Drift -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 0.024°C at 25°C (0.04°F at 77°F), see Plot A 4 minutes in air moving 1 m/s (2.2 mph) <0.1°C (0.18°F) per year Range Accuracy Resolution Response Time Drift 15% to 95% (non-condensing) ±3.5% from 25% to 85% including hysteresis at 25°C (77°F); below 25% and above 85% ±5% typical 0.07% at 25°C (77°F) and 30% RH 43 seconds to 90% in airflow of 1 m/s (2.2 mph) <1% per year typical 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 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 B 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 (84,650 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).

HOBO Temp/RH 3.5% Data Logger (UX100-003) Manual Logger Components and Operation LCD Screen: This logger is equipped with an LCD screen that displays details about the current status. This example shows all symbols illuminated on the LCD screen followed by definitions of each symbol in the table below. STARTSTOP CLEAR Start/Stop Button: Press this button for 3 seconds to start or stop logging data, or to resume logging on the next even logging interval. This requires configuring the logger in HOBOware with a push button start or stop, and with "Resume logging on next button push" selected (see...

HOBO Temp/RH 3.5% Data Logger (UX100-003) Manual HOBO Temp/RH 3.5% Data Logger (UX100-003) Manual Important: USB 2.0 specifications do not guarantee operation outside the range of 0°C (32°F) to 50°C (122°F). Description The logger is currently logging. A sensor reading is above or below the high or low alarm that you configured. Press and release the Alarm/Stats button until the "alm” symbol (described below) is displayed on the screen. This symbol at left will clear depending on how alarms were configured in HOBOware. If the alarm was configured to clear when the logger is relaunched, this symbol...

HOBO Temp/RH 3.5% Data Logger (UX100-003) Manual • Statistics. In Statistics mode, maximum, minimum, average, and standard deviation statistics are calculated for all enabled sensors during logging, sampling at an interval you specify. See Statistics for more information. 10. Click the Start button to launch the logger. Disconnect the logger from the computer and deploy it using the mounting materials (see Mounting the Logger). After logging begins, you can read out the logger at any time (see Reading Out the Logger for details). 7. Choose when to start logging: • Now. Logging begins immediately....

HOBO Temp/RH 3.5% Data Logger (UX100-003) Manual alarm will trip only if all sensor readings are 85°F or above for a continuous 30-minute period. Note that you cannot set up alarms with burst logging. You also cannot select the Stop Logging option “Never (wrap when full)” if burst logging is configured. 7. Repeat steps 2 through 6 for the other sensor if desired. 2. In the Burst Logging window, select a sensor. In the example, the temperature sensor was selected. 8. Choose how long the logger should maintain a sensor alarm once it has tripped. Select “Host has relaunched logger” if you want the...

HOBO Temp/RH 3.5% Data Logger (UX100-003) Manual • Burst logging mode can begin or end when the sensor reading is within the logger specifications of 0.02°C resolution. This means the value that triggers burst logging may differ slightly than the value entered. For example, if the high limit for a temperature alarm is set to 75.999°F, burst logging can start when the sensor reading is 75.994°F (which is within the 0.02°C resolution). • Once the high or low condition clears, the logging interval time will be calculated using the last recorded data point in burst logging mode, not the last data...

HOBO Temp/RH 3.5% Data Logger (UX100-003) Manual Internal Event Name Definition Chan <#> Alarm A sensor alarm has cleared; # is the channel Cleared or sensor number as shown in the Launch Logger window in HOBOware. This event also contains the value that was furthest out of range for the sensor before the alarm cleared. New Interval The logger has entered or exited burst logging mode. Safe Shutdown The battery level dropped below 2.5 V; the logger performs a safe shutdown. Mounting the Logger There are several ways to mount the logger using the materials included: • Use the four built-in magnets...