skip to Main Content

EDL-RF2 -80°C

Industrial quality, laboratory-grade, long range wireless dry ice temperature monitoring devices. Continuous operation.

Memory: 8k to 64k
Temperature Range: -80°C to +30°C / -112°F to +86°F

CALL 800-858-6872


Download Product Brief:
Download a PDF of the EDL-RF2 Quick Start Guide


Using 900 MHz RF(Radio Frequency) connectivity, EDL-RF2 can leverage your wireless RF connection to monitor and document temperature data in real time, from anywhere in the world. Avoid expensive installation costs for managing temperature data. Marathon’s Ethernet-enabled base stations will allow you to monitor multiple floors, buildings, and refrigeration rooms simultaneously and provides alarm notification via phone or email. With 256-bit AES Encryption the EDL-RF-2 is specially suited for hospitals, clinics, laboratories and research organizations. With expanded individual sensor memory and back-up batteries the EDL-RF2 protects against any data loss caused by a network interruption, computer malfunction or other system failure. This makes the EDL-RF2 the most reliable and robust wireless temperature logger on the market today.
In the lab, our NIST-calibrated and traceable thermistor probes have been tested sterile and can be used in incubators. EDL-RF2 is the perfect tool for quality assurance and quality control, for monitoring dry-ice temperatures for freezers, blood storage, vaccines and biologics. The EDL-RF2 is ideal for quickly and reliably collecting temperature data in real time, documenting standards compliance, and proof for certification.


  • Alarm notifications via email, phone, pager and SMS
  • Multiple Alarm options: local and remote
  • Precision temperature data capture
  • Powerful software with real time display
  • Audit Trails for RegulatoryControl
  • 8K to 64K EEPROM memory options
  • Power outage detection capabilities

Note: Actual performance of the edl-M5 system varies in each environment. Marathon strongly recommends the evaluation of the product in the actual environment of the application. Marathon publishes specifications typically experienced by our customer instead of publishing theoretical performance characteristics.

EDL-RF2 -80°C – SKU #8087
Memory EEPROM, Storage 8k to 64k memory options
Operating Range -80°C to +30°C / -112°F to +86°F
Accuracy (NIST traceable) ±0.5°C at center / ±1.0°C at extremes
±0.9°F at center / ±1.8°F at extremes
Measurement Intervals Programmable from 2 seconds per reading. See Duration Chart for examples.
Range Indoor urban environments 900-2,000 feet and more with relays. Line of sight with high-gain antennas 1 mile (1.6km).
High and Low Alarm Limits LED indicator alarm set by temperature and time.
Alarm Programming High and Low alarm limits set by temperature  and time.
Alarm Modes Continuous or cumulative with LED indicators
Alarm Notifications Alert notification to cell phone, pager and on desktop screen.
Alarm Reset Push button—manually or by software.
Power Source 110-240V 50/60Hz AC Adaptor for wireless connectivity, and user replaceable internal 3V lithium battery for data logging function. 3 year continuous use battery life.
Battery backup-failsafe prevents data loss.
Call for Battery Replacement price.
Size 7.9 cm  x 9.14 cm x 2.83 cm / 3.11″ x 3.60″ x 1.11″
Weight 250 grams / 9.0 oz.
CE Certified  Yes
(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
NIST Certificate = no charge
Optional Accessories: Flat cable probes and external audible alarm box.
RS232 serial cable, USB or Ethernet Base Station.
Relays for extending wireless communication.
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.

RF Base Station Module

RF Base Station Module

Back To Top