HOBO Temperature Relative Humidity Data Logger

Part # U10-003
This product is discontinued.

Upgrade to UX100-003


The HOBO U10 Temperature Data Logger is an economical choice for indoor temperature and relative humidity monitoring. Its small size and large memory capacity make it a great multi-purpose logger.

Highlighted Features

  • Small size for mounting anywhere
  • Low cost lets you monitor many locations economically
  • Internal sensors for easy deployment

In what environment does this data logger operate?

This data logger operates in an indoor environment.

What measurements does this data logger support?

The U10-003 data logger supports the following measurements: Relative Humidity and Temperature

To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Measurement range
Temperature: -20° to 70°C (-4° to 158°F)
RH: 25% to 95% RH

Plot ATemperature: ± 0.53°C from 0° to 50°C (± 0.95°F from 32° to 122°F), see Plot A
RH: ± 3.5% from 25% to 85% over the range of 15° to 45°C (59° to 113°F), see Plot B; ± 5% from 25% to 95% over the range of 5° to 55°C (41° to 131°F), see Plot B

Temperature: 0.14°C at 25°C (0.25°F at 77°F), see Plot A
RH: 0.07% @ 25°C and 30% RH

Sample Rate
1 second to 18 hours, user selectable

Temperature: 0.1°C/year (0.2°F/year)
RH: <1% per year typical

Plot BResponse time in airflow of 1 m/s (2.2 mph)
Temperature: 10 minutes, typical to 90%
RH: 6 minutes, typical to 90%

Time accuracy: Approximately ± 1 minute per month at 25°C (77°F), see Plot C

Operating range:
Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)

Battery life: 1 year typical use

Plot B RHMemory: 64K bytes (52,000 10-bit measurements)

Weight: 26 g (0.82 oz)

Dimensions: 45 x 60 x 20 mm (1.8 x 2.38 x 0.77 inches)

The CE Marking identifies this product as complying with the relevant directives in the European Union (EU).

HOBOware Pro Mac/Win (USB cable included)
HOBOware Pro - Mac/Win (Download Only)
Connection Cables
USB Cable
Data Offload - Base Stations - Shuttles
HOBO U-Shuttle
Replacement batteries (Pack of 5)
Replacement RH Sensor
Replacement RH sensor for H8, U10, or UX100-003 indoor data logger
Carrying Case
Pelican Case
Compliance Certificate
NIST Certification
Setup Charge for NIST Traceable
NIST Temperature point
Documentation for the U10-003

HOBO U10 Temp/RH Data Logger (U10-003) User's Manual