Introducing the edl®, a revolutionary electronic datalogger developed by Marathon for measuring temperatures for in-transit and stationary use.

Thanks to its small size, it is perfect for applications where space limitations exist.

The edl® datalogger measures and records temperatures using an internal temperature thermistor or an optional external probe.

The software provides internal timing set by the user or the user's computer; start, elapsed and stop time recording; measurement intervals set by the user; user comments for initialization and special instructions; and on-demand display of version, serial number, and model.

In addition, the edl® has programmable alarm limits, indicating selected conditions with an onboard LED red light.

The LED blinks until reset by the user.

Data is downloaded via an RS232 serial cable to a computer.

Specifications
Temperature Sensor: Precision Thermistor
Temperature Range: -40°F to +160°F (-40°C to +72°C) operation and measurement
Temperature Accuracy: ±0.25°F at center of range, ±1.0°F at extremes
Temperature Resolution: Better than 0.25°F and 0.124°C
Measurement Intervals: 2-second increments to 36.4 hours
Memory EEPROM, Storage: 8k, 16k, 24k, 32k
Number of Measurements: 8,000, 16,000, 24,000 or 32,000 (four models)
High and Low Alarm Limits: LED indicator alarm set by temperature and time
Internal Clock Accuracy: Better than 2 minutes per month
Indicators: Start/stop and alarm
Internal Software Provides: Start time, interval, user description, alarm values, recording status, measurement data, software version, serial number, and model.
Computer Interface: Serial port
Power Source: One 3.6 Volt Lithium Battery with a 2 year shelf life
Size: 9cm (l) x 5cm (w) x 1.6cm (h) (3.4in. (l) x 1.97in. (w) x .63in. (h))
Weight: 52.5 grams (1.85 ounces)
Optional external probes have 5-foot cables for ambient or liquid measurement. (Probe not available on 8k memory model).
Resolution: 1°C or F, 0.1°C or 0.1°F.
Accuracy: Accuracy is specified for operating temperatures over the range of 18°C to 28°C (68°F to 82°F), for 1 year, not including thermocouple error.