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MicroDL w/ Internal Sensor
mDL32 / mDL64

MicroDL w/ Internal Sensor

Part Number:MicroDL


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NIST Traceable Certificate
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  • Temperature Accuracy:±1.0°C at Full Scale
  • Alarm Display:LCD Display of Critical Mission Data
Key Features

  • Internal Temperature Sensor.
  • ±1.0°C Temperature Accuracy at Full Scale.
  • Measures Temperature in 0.1°C Increments.
  • User-Defined Logging Rates.
  • Stores up to 8K, 32K, 64K of Temperature Data.
  • Programmable High/Low Temperature Alarms.
  • LCD Display of Critical Mission Data.
  • User-Defined Logger Label.
  • Push-to-Start Mission Launch.
  • Unique Serial Number.
  • Optional NIST Traceable Certificate.
  • UV Resistant Enclosure.
  • Splash Proof IP54 Enclosure Rating.
  • 3 Year Battery Life (Continuous Use).

These MicroDL temperature data loggers house the sensing element within the enclosure simplifying deployment by eliminating wires and other protrusions.  The loggers are capable of monitoring a wide temperature range of up to -40°C thru 72°C answering the needs of researchers throughout the life sciences along with cold chain & pharmaceutical industries.  These multi-use loggers can be downloaded, reconfigured, and deployed numerous times; can last for months to years in most applications due to the ample storage capacity and battery life.  

The MicroDL loggers have many user programmable logging functions which allow the logger behavior to be customized for application specific needs (e.g. logging rates, alarm thresholds, start delay).  The loggers also have a digital display which enables you to view real-time temperature readings as well as review summarized historical data.  The table below compares the features of each of the MicroDL models.

Model #Operating Range Memory Size Continuous Memory Variable Memory Mean Kinetic Temperature Stainless Steel Back
mDL8 -30 to 72°C
-22 to 161°F
8K No No No No
mDL32 -40 to 72°C
-40 to 161°F
32K Yes No Yes Yes
mDL64 -40 to 72°C
-40 to 161°F
64K Yes Yes YesYes

Alarm Functions

The MicroDL loggers record both high and low temperature alarms.  The alarm duration reported may be configured to be the continuous duration (longest single alarm incident) or the cumulative alarm duration (total of all high or low alarm incidents).  At the push of a button, the LCD display allows you to view mission critical data such as: 

microDL Logging Enabled
Is the logger running?
microDL Alarm Duration
Have high or low alarms occurred? If so, how long?
microDL Maximum Temperaure
What are the maximum and minimum temperatures reached?
microDL mean kinetic temperature
What is the mean kinetic temperature?
Battery Life

The MicroDL battery is rated for 3 years* of use in typical applications and the batteries are factory replaceable.  The amount of battery life remaining is reported each time the logger is configured, helping prevent the deployment of loggers with insufficient battery life.  If a MicroDL logger's battery is depleted,  the temperature data is retained and once the battery is replaced the temperature data can be recovered. 

*In situations where loggers are recording readings quickly (faster than once a minute) or are used at temperature extremes, there may be a reduction in performance. 

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