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These data loggers are a low-cost and effective solution for monitoring refrigerated vaccines, documenting the transportation of fruit and vegetables, or for adjusting HVAC. All units use thermistor-based technology for measuring temperature and share the same basic palm-sized design.

 
 
If you are interested in our single-use data loggers, please click here.

Model	Memory	Accuracy	Operating Range	Battery Life	Warranty	Price
2c\temp	4K	0.5°C	-29°C to +72°C	12 months	90 days	$55
echo w/ Audible Alarm	4K	0.5°C	-29°C to +72°C	12 months	90 days	$65
3c\temp	8K	0.2°C	-29°C to +72°C	12 months	12 months	$80

The 2c\temp is our entry level data logger that offers the best value against all competition. You won't find a better product with these features. Optional probes available but not required.

The echo has the same specifications as the 2c\temp, but includes a built in audible alarm. Optional probes available but not required.

The 3c\temp is a mid-range data logger with a generous 8k memory and increased accuracy over the 2c\temp and echo. An excellent general purpose data logger. Optional probes available but not required.

Flexible
The internal software of the data loggers provide features for controlling and querying its status. These functions include Delay to Start, Stop, Elapsed Time as well as customizable time intervals. Also available: User Descriptions for initialization and for downloading the data; High and Low Alarm values, Recording Status, Real Time measurement display as well as much more.

Visual Alarms
All our data loggers have the ability to program alarm limits. Should the temperature reach levels outside these limits, the onboard red LED will light until reset by the user.

Computer Ready
Our proprietary RS232 serial cable is needed to download temperature information to a computer. If you do not have a serial port on your computer, you can purchase a USB to Serial Port adaptor here. Marathon's easy-to-use software is available for Microsoft Windows 2000, XP and Vista.

echo Data Sheet
Price		Low-Cost Data Logger with Audible Alarm $65.00 MDAS-PRO software $39.00 IC-9P Cable $35.00 NIST Certificate = no charge NIST Certificate + Single Point Certificate $50.00
Temperature Sensor		Precision Thermistor
Temperature Range		-29°C to +72°C (-20°F to +160°F) operation and measurement
Temperature Accuracy		0.5°C at 20°C, 1.0°C at extremes (0.9°F at 68°F, 1.8°F at extremes)
Temperature Resolution		0.5°C (0.9°F)
Memory EEPROM, Storage		4k memory, enabling a corresponding number of approximately 4,000 measurements.
Measurement Intervals		Programmable from 2 seconds per reading. For example: 7 days = 2 min. 42 sec. 30 days = 11 min. 28 sec. 60 days = 22 min. 56 sec. 90 days = 34 min. 24 sec. 180 days = 1 hour 8 min. 44 sec. 365 days = 2 hour 19 min. 16 sec.
High and Low Alarm Limits		LED indicator alarm set by temperature and time
Internal Clock Accuracy		Better than 2 minutes per month
Computer Interface		Standard serial port for a personal computer (RS232)
Power Source		Two 1.6 volt Lithium battery with a 12 month shelf life Battery Replacement $10.00
Size		12.85cm (l) x 6.73 cm (w) x 1.6 9cm (h) [5.06 in. (l) x 2.65 in. (w) x .66in. (h)]
Weight		106 grams (3.7 ounces)
Warranty		3 Months
Probes		Optional probes available for ambient or liquid measurement.
CE Certified
MDAS Software		MDAS software is not 21CFR Part 11 compliant click here for 21CFR Part 11 Compliant Software
Software Highlights		Report Summary & Statistics Mean Kinetic Temperature Calculation File Manager Note attachment Zoom Ability to look at recorded temperature points and date / time stamp Elapsed time view or date / time recorded view Celsius, Fahrenheit or Kelvin display 3D view option Can open up to 16 files at one time Export data to CSV or TXT file Export graph as a bitmap or metafile

2c\temp Data Sheet
Price		Entry-level electronic data logger $55.00 MDAS-PRO software $39.00 IC-9P Cable $35.00 NIST Certificate = no charge NIST Certificate + Single Point Calibration $50.00
Temperature Sensor		Precision Thermistor
Temperature Range		-29°C to +72°C (-20°F to +160°F) operation and measurement
Temperature Accuracy		0.5°C at 20°C, 1.0°C at extremes (0.9°F at 68°F, 1.8°F at extremes)
Temperature Resolution		0.5°C (0.9°F)
Memory EEPROM, Storage		4k memory, enabling a corresponding number of approximately 4,000 measurements.
Measurement Intervals		Programmable from 2 seconds per reading. For example: 7 days = 2 min. 42 sec. 30 days = 11 min. 28 sec. 60 days = 22 min. 56 sec. 90 days = 34 min. 24 sec. 180 days = 1 hour 8 min. 44 sec. 365 days = 2 hour 19 min. 16 sec.
High and Low Alarm Limits		LED indicator alarm set by temperature and time
Internal Clock Accuracy		Better than 2 minutes per month
Computer Interface		Standard serial port for a personal computer (RS232)
Power Source		One 3.0 volt Lithium battery with a 12 month shelf life Battery Replacement $10.00
Size		9cm(l) x 5cm(w) x 1.6cm (h) (3.4in.(l) x 1.97in (w) x .63(h)
Weight		52.5 grams (1.85 oz).
Warranty		3 Months
Probes		No
CE Certified
MDAS Software		MDAS software is not 21CFR Part 11 compliant click here for 21CFR Part 11 Compliant Software
Software Highlights		Report Summary & Statistics Mean Kinetic Temperature Calculation File Manager Note attachment Zoom Ability to look at recorded temperature points and date / time stamp Elapsed time view or date / time recorded view Celsius, Fahrenheit or Kelvin display 3D view option Can open up to 16 files at one time Export data to CSV or TXT file Export graph as a bitmap or metafile

3c\temp Data Sheet
Price		Mid range electronic data logger $80.00 MDAS-PRO software $39.00 IC9P $35.00 NIST Certificate = no charge NIST Certificate + Single Point Calibration $50.00
Temperature Sensor		Precision Thermistor
Temperature Range		-29°C to +72°C (-20°F to +160°F) operation and measurement
Temperature Accuracy		0.2°C at 20°C, 0.5°C at extremes (0.36°F at 68°F, 0.9°F at extremes)
Temperature Resolution		0.2°C (0.36°F)
Memory EEPROM, Storage		8k memory, enabling a corresponding number of approximately 8,000 measurements.
Measurement Intervals		Programmable from 2 sec. per reading, for example: 7 days = 1 min. 20 sec 30 days = 5 min. 38 sec. 60 days = 11 min. 16 sec. 90 days = 16 min. 54 sec. 180 days = 33 min. 48 sec. 365 days = 1 hour 8 min. 32 sec.
>High and Low Alarm Limits		LED indicator alarm set by temperature and time
Internal Clock Accuracy		Better than 2 minutes per month
Computer Interface		Standard serial port for a personal computer (RS232)
Power Source		One 3.0 volt Lithium battery with a 12 month shelf life Battery Replacement $10.00
Size		9cm(l) x 5cm(w) x 1.6cm (h) (3.4in.(l) x 1.97in (w) x .63(h)
Weight		52.5 grams (1.85 oz).
Warranty		12 Months
Probes		Optional probes available for ambient or liquid measurement.
CE Certified
MDAS Software		MDAS. software is not 21CFR Part 11 compliant click here for 21CFR Part 11 Compliant Software
Software Highlights		Report Summary & Statistics Mean Kinetic Temperature Calculation File Manager Note attachment Zoom Ability to look at recorded temperature points and date / time stamp Elapsed time view or date / time recorded view Celsius, Fahrenheit or Kelvin display 3D view option Can open up to 16 files at one time Export data to CSV or TXT file Export graph as a bitmap or metafile