Part Number - U12-015

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

$323.00 USD
An ideal data logger for food, pharmaceutical, autoclave, and other applications where high-accuracy temperature data is critical; also for high-temperature or deep underwater applications.

Important Information

Requires HOBOware software and a USB cable. (Note: A USB cable is included w/HOBOware Pro CD or USB software purchase). See compatible items below.

Compatible with



An ideal data logger 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, this logger withstands process conditions, from pasteurization to flash freezing and washdown. This logger is also well suited  for high-temperature or deep underwater applications.


  • 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 and graphing & analysis
Country of Origin
United States



Measurement Range
-40° to 125°C
-40° to 257°F
±0.25°C from 0° to 50°C , see manual for plot
±0.45°F from 32° to 122°F , see manual for plot
0.03°C at 25°C , see manual for plot
0.05°F at 77°F , see manual for plot
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%
Time Accuracy
±2 minute per month at 25°C (77°F)
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
64K bytes (43,000 12-bit measurements)
316 series stainless steel, EPDM or Viton O-ring; see Food-Grade Compliance section for additional details
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 maximum
1500 m/4900 ft maximum
NIST Certificate
-22° to 248°F
CE Compliance Mark

Compatible items

Compliance Certificates

$29.00 USD

NIST Setup & Certifications

Communication Cables

$17.00 USD


$21.00 USD
$21.00 USD

Graphing & Analysis

$75.00 USD
$99.00 USD

What's in the box

  • HOBO U12-015 Stainless Temperature Data Logger
  • O-Ring replacement kit


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

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Quick Start for the HOBO® U-Series Data Logger

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