What is a data logger?

what is a data logger

What is a data logger?

A data logger (logger) is an electronic instrument (usually battery powered) that monitors an environment over time and automatically logs data within its internal memory. If the logger has an LCD screen it can also display live data readings. Data is extracted manually usually via a USB connection to a PC.

Our loggers can measure various parameters such as; temperature, relative humidity, light, CO2 and shock. For use in buildings or in transit loggers are ideal for small to medium monitoring requirements and can be used for an array of applications and industries, for example:

  • Logistics companies to monitor shock and impact during transit to determine if and when goods are being damaged throughout the journey.
  • Museum exhibitions; to ensure artefacts on display are kept within optimum humidity and light conditions.
  • Food cold-chain temperature monitoring for HACCP compliance and food waste reduction.


A logger provides users with an affordable monitoring solution for data recording (that eliminates manual errors) but is often also required to ensure industry regulation compliance. More reliable than hand-written record keeping, a logger will ensure there are no gaps in your records and provide automated reports.

However, it is important to remember that only retrospective data can be obtained from loggers so often the damage is already done. If your monitoring requirements are to prevent potential damage you should consider a wireless system that provides immediate alerts of environmental breaches.


If you would like more information on data loggers click here or contact us to discuss your specific requirements.


Our products are manufactured by Hanwell | Ellab