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EDL-M5 -80°C

Wireless Temperature Sensors. Data Logging with Alarm Notification via Cellphone or Email.
Centralized Monitoring for pharmaceutical, biologics, medical devices and combination products.

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

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Download Product Brief:
Download a PDF of the EDL-M5 Quick Start Guide


The EDL-M5 has a powerful 2-way 900MHz radio for long range wireless connectivity and is ideal for remotely monitoring multiple buildings, trucks, warehouses and sites simultaneously. With expanded individual sensor memory and back-up batteries the EDL-M5 protects against any data loss caused by a network interruption, computer malfunction or other system failure. This makes the EDL-M5 the most durable, reliable, and robust wireless temperature logger on the market today. With 256-bit AES Encryption the EDL-M5 can be securely accessed at anytime from anywhere over a local network or via the internet.
In the lab, our NIST-calibrated and traceable thermistor probes have been tested sterile and can be used in most clean environments. EDL-M5 is perfect for quality assurance and quality control, for monitoring dry-ice temperatures for facilities, storage, warehouses, and trucking via state-of-the-art high performance temperature sensors and data logging. The EDL-M5 is an ideal tool for reliably collecting, recording and storing temperature measurement data in real time, documenting standards compliance, and as proof for certification.


  • Alarm notifications via cell email,phone, SMS or pager
  • Multiple Alarm options: local and remote
  • Precision temperature data capture
  • Powerful software with real time display
  • Audit Trails for Regulatory Control
  • 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-M5 -80°C – SKU #8082
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
Temperature Sensor NIST-traceable precision thermistor.
Measurement Intervals Programmable from 2 seconds per reading. See Duration Chart for examples.
Range Up to 2000 feet indoor/urban range. Outdoor RF line-of-sight range with high-gain antenna, 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 Alarm condition on-screen, via email and cell phone.
Alarm Reset Push button—manually or by software.
Power Source 4 D cell 1.5V Alkaline or 110-240V 50/60Hz AC Adaptor. 3 year continuous use battery life.
Battery backup-failsafe prevents data loss.
Call for Battery Replacement price.
Size 16.05 cm  x 12.4 cm x 7.30 cm / 6.32″ x 4.88″ x 2.89″
Weight 1.27 kg / 2 lbs 8.6 oz. with 4 D batteries
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: Optional probes, External connector to DC power supply. A/C adaptor. Relays for extending communication distance.
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

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