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microDL-200°C Temperature Data Logger

Multi-use Liquid Nitrogen Temperature Data Logger

Memory: 32k
Temperature Range: -200°C to +72°C / -328°F to +162°F

CALL 800-858-6872


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Download a PDF of the microDL Quick Start Guide
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The microDL-200°C can monitor and validate your critical stem cells and biologics during transportation and storage. The compact, coin-sized unit with the external thermistor probe can instantly help you verify that internal temperatures of your liquid nitrogen packages meet specifications prior to acceptance of your shipment. Simply push the start button to view critical temperature information upon arrivals. In conjunction with our MDAS-Pro or 21CFR compliant software, the microDL-200°C will document your critical products for your GxP and FDA regulated environment.

With a generous 32k of memory, the microDL-200°C comes with either a stainless steel probe, or flexible teflon probe with a stainless steel tip. Custom configurations are available, upon request.

Flexible: Press the start button to display the following information, whether or not the logger is recording: Current Temperature, Elapsed Time in Days, MKT(Mean Kinetic Temperature), High Temperature, Low Temperature, Alarm Time over High Temperature, Alarm Time Below Low Temperature, and Alarm Conditions.

Customizable settings include: Delay to Start, Stop, Elapsed Time as well as customizable sampling time intervals. Also available: User Descriptions for initialization and for downloading the data.

Visual Alarms: All our data loggers have the ability to program alarm limits. Should the temperature reach levels outside these limits, the digital display will show a notice until reset by the user. Alarm conditions can be programmed for start/delay, high/low, continuous or cumulative time over alarm. Push the start button to view critical temperature information anytime.

Computer Ready: The microDL-200°C is a state-of-the-art, water-resistant data logger with non-volatile memory for data retention. For a complete analytical solution, simply download all of its data to your PC with the proprietary microDL USB Reader and Marathon’s easy-to-use MDAS-Pro software. Compatible with Microsoft Windows XP, Vista and 7, 8 & 10. 21CFR compliant software is available with full database capabilities.

microDL-200°C – SKU #8100
Memory EEPROM, Storage 32k (approx. 32,000 data points)
Operating Range -200°C to +72°C / -328°F to +162°F
Accuracy (NIST traceable) ±0.5°C at 0° to 20°C / ±1.0°C at extremes
0.9°F at 32° to 68°F / 1.8°F at extremes
Measurement Intervals Programmable from 2 seconds per reading. See Duration Chart for examples.
High and Low Alarm Limits LED indicator alarm set by temperature and time.
Indicators Power and Alarm
Internal Clock Accuracy Better than 2 minutes per month
Computer Interface USB 1.1 Port Reader Station
Power Source (2) 3 volt lithium coin cells. 5 year shelf life,
with approx. 2 year continuous operating mode.
Call for Battery Replacement price.
Size Diameter: 2.86 cm / 1.25 in.
Height: 1.9 cm / .75 in.
Weight 17 grams / 0.6 oz.
CE Certified
(Not 21CFR Part 11 compliant. Click here for 21CFR Part 11 Compliant Software)
Software Highlights: Report Summary & Statistics  •File Manager  •Note Attachment  •Zoom  •Elapsed Time view or Date/Time Recorded view
•Celsius, Fahrenheit or Kelvin display  •3D view option
Warranty 12 months
Required Accessories: MDAS-PRO
microDL Reader Station
NIST Certificate = no charge
Optional Accessories: NIST Certificate + 1, 2 or 3 Point Calibration Available

Specifications subject to change without prior notice.

MDAS-Pro Software

Centralized Monitoring:

Our MDAS-Pro software is the ideal solution for managing and analyzing data from multiple data loggers from multiple locations. With IP Address access MDAS-Pro is location independent so data loggers located anywhere can be centrally monitored and managed.

Marathon’s Data Analysis Software (MDAS) allows you to view up to 16 multiple traces at one time, enables you to transfer the information recorded in the logger to your computer, and to view, print and generate a report of the measurement data. The graphic representations include rotating 3D views, unlimited zooms, view temperature data points on the graph, view the total elapsed time or the exact time when it was recorded.

The graph and all data points (date, time and temperature) can be printed, as well as the ability to add a Note to the file for including information pertinent to that graphic trace. Users have the ability to view the numeric data within a screen window, calculate the Mean Kinetic Temperature of the recording as well as export data in a CSV format. A summary report showing the Start and Stop Time, High, Low, Median and Average temperatures as well as the Alarm information is also displayed. The data from the logger is downloaded to your PC via our proprietary RS232 serial interface cable or USB interface.

MDAS-Pro offers language support for English, French, German, Portuguese and Spanish. A separate installation program for Chinese and Japanese is also available on the CD-ROM with this version of the software. The software has been designed for the Microsoft operating system platforms and is compatible with Windows XP, Vista, 7, 8 and 10.

Flexible Teflon Probe

Flexible Teflon Probe with Stainless Steel Tip
SKU #8100

Total Length: 50.8 cm / 20 in.
Stainless Steel Tip: 15.24 cm / 6 in.
Outside Diameter: 3.49 mm / 0.136 in.
Inside Diameter: 2.5mm / 0.09 in.

Custom probe lengths available.

Stainless Steel Probe

Standard Stainless Steel Probe
SKU #8106

Length: 61 cm / 24 in.
Outside Diameter: 3.49 mm / 0.136 in.
Inside Diameter: 2.5mm / 0.09 in.

microDL Reader Station

microDL Reader Station

USB 1.1 Port Interface

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