HOBO Stainless Temperature (4,900 ft.) Data Logger

Part # U12-015
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HOBO data loggers requires HOBOware software (USB interface cable included w/CD purchase) and a communications device. See compatible items below.


The HOBO U12 Stainless Temperature Data Logger is ideal for food, pharmaceutical, autoclave, and other applications where high-accuracy temperature data is critical. With its broad temperature range (-40 to 125C) and food-grade stainless steel housing, the U12 Stainless Temperature Data Logger withstands process conditions from pasteurization to flash freezing and washdown. The U12 Stainless is also ideal for high-temperature or deep underwater applications.

Highlighted Features

  • Food-grade 316 Series Stainless Steel
  • High-accuracy, extended temperature range
  • Suitable for high pressure applications to 2200psi
  • Fast readout via direct USB interface
  • Compatible with HOBOware and HOBOware Pro for logger setup, graphing and analysis

In what environment does this data logger operate?

This data logger operates in indoor, outdoor and underwater environments.

What measurements does this data logger support?

The U12-015 data logger supports the following measurement: Temperature

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

Measurement range: -40° to 125°C (-40° to 257°F)

Plot AAccuracy: ± 0.25°C from 0° to 50°C (± 0.45°F from 32° to 122°F), see Plot A

Resolution: 0.03°C at 25°C (0.05°F at 77°F), see Plot A

Drift: 0.05°C/year + 0.1°C/1000 hrs above 100°C (0.09°F/year + 0.2°F/1000 hrs above 212°F)

Response time in 1 m/s (2.2 mph) airflow:
U12-015: < 10 minutes, typical to 90%
U12-015-02: 2.25 minutes, typical to 90%

Response time in water:
U12-015: < 3.5 minutes, typical to 90%
U12-015-02: 20 seconds, typical to 90%

Plot BTime accuracy: ± 2 minute per month at 25°C (77°F), see Plot B

Operating environment: Air, water, steam, 0 to 100% RH

Operating temperature:
Logging: -40° to 125°C (-40° to 257°F)
Launch/readout: 0° to 50°C (32° to 122°F), per USB specification

Battery: life 3 year typical use, factory replaceable

Memory: 64K bytes (43,000 12-bit measurements)

Construction: Food-grade 316 Series Stainless Steel

U12-015: 72 g (2.5 oz)
U12-015-02: 82 g (2.9 oz)

Logger dimensions: 17.5 x 101.6 mm (0.69 x 4.00 inches)

Probe dimensions (U12-015-02 only): 4 x 124 mm (0.16 x 4.90 inches)

Pressure/depth rating: 2200 psi (1500 m/4900 ft) maximum

Vibration rating: Navy spec: NAVMAT P-9492 (non-probe model only)

NIST certificate: Available for additional charge; temperature range -30° to 120°C (-22° to 248°F)

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

Graphing and Analysis
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 O-ring kit (EPDM)
Replacement O-ring kit (Viton)
Carrying Case
Pelican Case
Compliance Certificate
NIST Certification
Setup Charge for NIST Traceable
NIST Temperature point
Documentation for the U12-015

U12-Stainless-Data-Sheet logo
U12 Stainless Temp Logger Data Sheet

HOBO U12 Stainless Temperature Data Logger (U12-015, U12-015-02) User's Manual