HOBO Temperature/Relative Humidity 3.5% Data Logger
Overview
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.
HOBO Temperature/Relative Humidity 3.5% Data Logger
Features
- Easy-to-view LCD display
- Large memory capacity
- Visual high & low alarm thresholds
- Burst and Statistics logging modes
- User-replaceable Relative Humidity sensor
- Compatible with HOBOware and HOBOware Pro software for logger setup and graphing & analysis
HOBO Temperature/Relative Humidity 3.5% Data Logger
Specifications
Temperature Sensor
Range
-20° to 70°C
-4° to 158°F
Accuracy
±0.21°C from 0° to 50°C , see manual for plot
±0.38°F from 32° to 122°F , see manual for plot
Resolution
0.024°C at 25°C , see manual for plot
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
15% to 95% (non-condensing)
Accuracy
±3.5% from 25% to 85% including hysteresis at 25°C (77°F); below 25% and above 85% ±5% typical
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
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 memory full, push 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, typical with logging rate of 1 minute and sampling interval of 15 seconds or greater
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
HOBO Temperature/Relative Humidity 3.5% Data Logger
