HOBO Temp/RH 2.5% Data Logger

With integrated sensors, measures and records temperature and relative humidity (within 2.5% accuracy) in indoor environments.

This logger is ideal for monitoring occupant comfort in office buildings, tracking food storage conditions in warehouses, logging temperature trends in server rooms, and measuring humidity levels in museums.

Documentation

Highlighted Features

• Easy-to-view LCD display
• Large memory capacity
• Visual high & low alarm thresholds
• Burst and Statistics logging modes
• User-replaceable relative humidity sensor

Specifications

Temperature Sensor:

• Range: -20°C to 70°C / -4°F to 158°F
• Accuracy: ±0.21°C from 0°C to 50°C / ±0.38°F from 32°F to 122°F, see manual for plot
• Resolution: 0.024°C at 25°C / 0.04°F at 77°F, see manual for plot
• Response Time: 4 minutes in air moving 1 m/s (2.2 mph)
• Drift: <0.1°C per year / 0.18°F per year

RH Sensor:

• Range: 1% to 95% (non-condensing)
• Accuracy: ±2.5% from 10% to 90% typical, to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
• Resolution: 0.01%
• Response Time: 10 seconds to 90% in airflow of 1 m/s (2.2 mph)
• Drift: <1% per year typical

Logger:

• Logger Operating Range:

  • Logging: -20°C to 70°C / -4°F to 158°F; 0 to 95% RH (non-condensing)
  • Launch/Readout: 0°C to 50°C / 32°F to 122°F per USB specification

• Logging Rate: 1 second to 18 hours, 12 minutes, 15 seconds

• Logging Modes: Fixed interval (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 the memory is full, push the button, or date & time

• Restart Mode: Push-button

• Time Accuracy: ±1 minute per month at 25°C (77°F)

• Power Source: One 3V CR2032 lithium battery and USB cable

• Battery Life: 1 year, typically with logging rate of 1 minute and sampling interval of 15 seconds or greater

• Memory: 128 KB (63,488 measurements, maximum)

• Download Type: USB 2.0 interface

• Full Memory Download Time: 20 seconds

• LCD: LCD is visible from 0°C to 50°C / 32°F to 122°F; the LCD may react slowly or go blank in temperatures outside this range

• Size: 3.66 x 8.48 x 2.29 cm / 1.44 x 3.34 x 0.9 in.

• Environmental Rating: IP50

Application 

In what environment does this data logger operate?

What measurements does this data logger support?