LM Pro IN031

It is very critical to know and ensure that a lifesaving drug like vaccine is stored according to the recommended temperature throughout its lifecycle. WHO PQS E06/IN03.1 clearly defines the requirements for monitoring of vaccine temperatures during the different phase of vaccine cold chain. LM Pro IN031 is an Irreversible Freeze Indicator. There are three models to choose from- Type A, Type B, Type C, based on the requirement of temperature and trigger time.

A clearly visible “✔ indicates temperature is above freezing temperature and “X” indicates whether temperature has dropped below the pre-configured alarm limits as per the WHO PQS guidelines. It comes with an NABL traceable calibration certificate.


Key Features:

  • Easy and Immediate display
  • Measuring Accuracy of ± 0.5 °C or better at 0 °C
  • Highly accurate and reliable
  • Monitor freeze sensitive goods like
  • Vaccines, medicines, Pharmaceuticals etc.
  • Long Shelf Life
  • Operating life upto 3.5 years
  • No software required

*Features depends on the product ordered. Please refer to the order code (Model No) of your product for exact features and capabilities.


Model LMPro IN031 (Order Code: 99960)
Internal Sensor Thermistor – 10K NTC
Operating Temperature Range -20 °C to +60 °C
Accuracy ± 0.5 °C or better at 0 °C
Calibration# Each device accompanies NABL (ISO/IEC 17025) traceable certificate
Freeze Indicator Type A (Orange) Type B (Yellow) Type C (Green)
Alarm Limits <= 0 °C <= 0 °C <= -0.5 °C
Alarm trigger time 10 minutes 60 minutes 60 minutes
Temperature measurement Interval 30 seconds
Power Requirement
Battery Non-Replaceable 3.0 V 225 mAH; CR2032 Panasonic (or Equivalent) Coin Cell Battery;
Battery Life Up to 3.5 years
Shelf Life Up to 3.5 years
Environmental Specification
Temperature during Transportation and Storage – Device inactivated +5 ˚C to +55 ˚C
Temperature during operation -20 °C to +60 °C (EN12830:1999 Table3, Climate Type C)
Humidity During Transportation, Storage and usage 0 to 95% RH non-condensing
Human Interface
Activation Device is activated by long press of key for 10 seconds.
De-Activation Cannot be manipulated, reset or deactivated without destroying it.
Display Type LCD display with “✔” OK, “X” NOK symbols and “●” dot indicator.

·         “✔” indicates that the temperature of load has remained above alarm limit temperature.

·         “X” indicates that the temperature has fallen below alarm limit for more than alarm trigger time delay.

·         A flashing “●” in right side of the display indicates that the product is working, and battery is functioning.

Legibility Legible in bright sunlight and tungsten/Fluorescent lighting at 100 lux for person with normal visual acuity.
Mounting Device Through eyelet provided.
Material Polycarbonate Plastic non-breakable housing
Warranty 15 months replacement warranty from the date of dispatch. Refer to warranty certificate for more details.
Service Provision No user serviceable parts inside.
Physical Characteristics
Overall Dimension (LxWxH) mm 70x35x13 mm
weight Approx. 30 gms
Electromagnetic Compatibility IEC 61000-6-2/6-3
Resistance to Electrical Storms IEC 61000-6-2; (IEC 61000-4-2 Basic Standard for applicability of tests)
IP Rating IP 64; IEC 60529
Impact Resistance 5 drops from 1 meter onto concrete floor with battery in place. Device does not get damaged and there is no loss of calibration.
Vibration EN 12830:1999 Clause and Test Method 5.6.6
RoHS Compliant (EU directive 2011/65/EU)
Verification In accordance with PQS verification protocol E06/IN03.VP.1

# Calibration conformity certificate of sensor for the device.


  1. Device calibration certificate


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