Ideal for monitoring temperature in extreme environments where conventional data loggers are not able to survive.
SKU: 01-0263
$473.00 USD

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Nautilus data loggers are ideal for monitoring temperature in extreme environments where conventional data loggers are not able to survive.

Nautilus High Temperature Typical Applications:

  • Autoclave monitoring
  • Boiler or steamy environments
  • Available in either lightweight Aluminum or Stainless Steel cases

Nautilus Standard Temperature Typical Applications:

  • Oceans, Streams and Wastewater
  • Food Production
  • Available in either lightweight Aluminum or Stainless Steel cases

Key Features:

  • Waterproof
  • Available in different operating ranges and cases
  • High memory capacity


Battery 3.6 volt Lithium, 0.95 Amp-Hour
Battery Life See individual specifications
Case Material Anodized aluminum or stainless steel
Clock Accuracy +/- 2 seconds per day
Memory Size 32 KB (up to 244,800 readings with data compression)
Mounting Locking hole on cap
Operating Limits See individual specifications
Operating Pressure Range Up to 2000 PSI
PC Requirements Windows PC with a least 256MB RAM, 250MB of hard drive space and one free serial or USB port
Power Consumption 5 to 10 microamps (continuous)
Resolution 8-bit (1 part in 256)
Sampling Methods 1. Continuous (First-in, First-out)
2. Stop when full (Fill-then-stop)
(Option to delay start)
Sampling Rates User selectable from 8 seconds to 34 minutes
Readings stored to memory can be spot or averaged over the sample interval (except for the 8 second interval)
Sensor Accuracy +/- 0.5°C (+/- 0.9°F)
Sensor Type Negative temperature Coefficient (NTC) Thermistor
10,000 ohms @ 25°C (77°F)
Size 18 mm x 127 mm (0.71″ x 5.00″)
Software Requirements TrendReader® Express or TrendReader® (compatible with Windows 7, Windows 8 & Windows 10)
Temperature Range 10°C to 125°C (50 to 257°F)
Weight Aluminum case: 51 grams (1.8 ounces)
Stainless steel case: 112 grams (4 ounces)


ACR softwares are powerful, easy and intuitive that opens a window into the analysis of your data collected. Data can be viewed in various formats and presentation quality graphs can be exported into any WORD program. The software provides electronic records for a reduced paper trail.

TrendReader Express TrendReader Express - License TrendReader Express USB - Full


For a product sheet, please click below for a pdf version.

Product Sheet

A link to the Manual is available by clicking on the link below.

Nautilus Manual


Click here to visit our NEW Q&A pages.


Data loggers are often used in highly regulated environments such as food and pharmaceutical production and storage where strict safety regulations apply. Regulatory agencies generally require proof of calibration.

ACR calibrations are performed using reference standards that have been calibrated and are traceable to the US National Institute of Standards & Technology (NIST). This ensures that all ACR data loggers meet, and perform to, their published specifications, allowing you to be confident that they will assist you in achieving your compliance requirements.

Calibration certificates are provided with every calibration we perform. ACR Systems is an ISO 9001:2015 registered company and calibration records are kept as part of our quality system and can be made available for customer audits.

Calibration Service
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