A data logger, or data recorder, is a battery-powered, compact device with an internal processor, data storage and one or several sensors. These devices can be used in many different environments and record measurements at predetermined intervals. These devices monitor and record environmental variables over time. This allows conditions to be assessed, documented, analysed, and validated. The data logger is equipped with a sensor that receives the information, and a chip computer to store it. The data is then transferred from the data logger to a computer and analyzed. Learn more about data loggers in our guide .

What is a data logger?

In all sorts of applications, including research, performance monitoring, and analysis, data loggers are used. They are therefore used in a wide range of industries. They are designed to store and capture large volumes of accurate measurement data. This is usually done to track environmental parameters over a certain time period, process or location.

Sensors or other detection instruments calibrated to detect certain environmental stimuli are used to gather the information. Sensors can be integrated into a device or mounted externally.

The majority of today’s loggers are battery powered, compact, and highly portable. They form an important part of the data collection area. These loggers can be used almost anywhere and are a modern upgrade to older data collection equipment like chart recorders.

What measurements and data can a datalogger record?

Depending on which data logger you use, measurements can include air temperatures, humidity, AC/DC voltage and current, differential pressure and time of use (lights and motors). Light intensity, water temperatures, water levels, dissolved oxygen and soil moisture, rain, wind speed, direction and leaf wetness.

What are the main features of a data log?

  • These devices are compact and portable and can be used in the lab and on the field.
  • Computer control can automatically measure data, eliminating the need for physical presence and saving valuable resources.
  • Some data loggers come with a USB plug-in interface or wireless Bluetooth technology that makes data transfer easier and more convenient.
  • Data loggers are accessible remotely and can store readings to be brought back to the office or laboratory after data collection in the field.
  • Some data loggers are IP rated to resist environmental elements and collect data.
  • Data can be collected 24 hours per day, 365 days per year.

Data loggers are used for a variety of purposes, including:

  • Environmental Monitoring – to track temperature and humidity levels, air quality and light levels for environmental studies, HVAC systems and agricultural projects
  • Monitoring and Optimising Industrial Processes, e.g. Pressure, flow rate and voltage
  • Energy Management helps track electricity consumption and solar panel performance.
  • Research and Development – they support evidence-based discoveries and innovations in fields such as biology and chemistry.

How can you use a data log?

  • Install software on your mobile device or laptop
  • Connect the data logger to launch parameters
  • Place the location in desired time and record data.
  • Connect the data logger to your mobile device or laptop
  • Download and read data files with analysis software