November 1, 2021

The datalogger or also called data logger is, as its name in Spanish indicates, a device used to record data. You may wonder what kind of data? and with good reason, its uses extend to various areas. This is because they can record temperature, humidity, weight, speed and other data depending on the need.

What is a Datalogger?

The concept of datalogger is somewhat broad, it is applied to those equipments that serve to record data. However, dataloggers are usually characterized by being autonomous devices , they store the data in an internal memory so that it is later downloadable. Said memories are commonly EEPROM, electrical ROM memories that can be read in an unlimited way and is reprogrammable, although not in an unlimited way.

What is a Datalogger for?

Imagine for a moment that you run a grocery business; If so, you will need to have variables such as humidity and temperature under control, which is why dataloggers are highly used in the industrial sector . Basically, this is the data logging instrument par excellence thanks to its autonomy, sensors and input channels.

The great advantage of dataloggers over other types of data storage systems, such as those that use computers to record data, is that their autonomy makes them suitable for operating in hostile environments. In fact, many can run for years without supervision, so they are battery-powered, and some even include solar panels.

A limitation in the case of the datalogger is the sampling rate, since having an internal memory its capacity is limited, unlike real-time systems, the fastest speed reaches the sample per second. There are dataloggers compatible with the function of sending data in real time, but their use depends on the conditions.

How does a Datalogger work?

When we talk about dataloggers we are not referring to a standard model that works in a certain way. These, for their use, must be programmed and the way to do it depends on the model , although you should not worry, they come with their corresponding instructions. Then, you just have to place it in the place where you will carry out the measurement and, subsequently, you will export the data.

Uses of the Datalogger

As I mentioned earlier, dataloggers are highly used in the industrial sector. This is due to the demands in it, on the control of the merchandise to ensure quality. Due to the different data that it can record, it is extremely useful in various areas, the most common in which you can find it are:

  • Meteorology

To measure temperature, humidity, wind speed and more. It is used both in stations and in investigations. Especially useful in harsh climates as they work without supervision.

  • Vehicles

Many loggers use channels to measure speed, weight, even accelerometers. In automobiles, the engine controller records engine data. In airplanes there is a so-called “black box” to record as much data as possible in case of accidents. And data loggers are used on multi-ton ships as well.

  • Research

Just as it is used in meteorological research, it is also common to find it in laboratories and research with fauna.

In general, the use of the datalogger is quite widespread in various sectors and there are even people who use them in their personal projects, since there is currently a wide range of models, many of them being economically accessible. Dataloggers record physical properties themselves, hence their multiple uses.

Types of Datalogger

There are different models of datalogger depending on what you need to record. There are as many types as working conditions and what you want to measure. They are also differentiated by technical details such as the communication interface, which is one of the most relevant features.

By communication interface there are these three types:

  • USB
  • WIFI (depends on modem, which can be a disadvantage in some cases)
  • Waves of various frequencies (radio, Bluetooth, among others)

Another important point to keep in mind is the measurement intervals , since, depending on what you are going to work on, you will need a greater or lesser time range between them. And of course there are one-channel and multi-channel ones, to record different variables. The size and material of it are relevant depending on the conditions in which you will use it, for example, if you ae going to use it in water, etc.

Datalogger Features

Dataloggers, as you have observed, vary among themselves and therefore, as long as they maintain their main function of recording data through sensors, they can technically be classified as one. But among its main characteristics the following can be highlighted:

  • It has internal memory
  • Electronics devices
  • Autonomous operation
  • Low speed
  • Notebooks
  • They have long-lasting batteries
  • They do not need additional tools
  • Record data for long periods

There are dataloggers that work with web servers, the benefit of this is being able to verify the data remotely. Thanks to technological advances, there are more and more complex data loggers, capable of measuring more variables and with greater functionalities. But if something remains the defining characteristic, it is its autonomy, with respect to other data collection tools.

Importance of the Datalogger

The relevance of an instrument like the datalogger speaks for itself. It is not surprising that it is required in various fields, because the extent of use makes it a highly needed item in many fields. Industries must maintain a regulation in their production process, temperature, humidity, weight and other qualities must be controlled and for this they need these equipments that do it with precision.

Not only this sector is benefited. Measuring the pH of water, making meteorological records, measuring the pressure and acceleration of a falling object, can also be achieved with this great instrument. The datalogger has both practical uses for research.

It can also be incorporated into vehicles for safety reasons. Therefore, the importance of this tool is unquestionable, both to achieve advances in technological and scientific fields and for the day-to-day lives of many, whose trade incorporates its use.

Are you interested in buying a datalogger? Do you need to make measurements of physical factors in the environment? This tool is extremely useful and many are easy to use and affordable.

Dr. Loony Davis5
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Born and raised in Brussels in an English family, I have always lived in a multicultural environment. After several work experiences in marketing and communication, I came to Smart Water Magazine, which I describe as the most exciting challenge of my career.
I am a person with great restlessness and curiosity to learn, discover what I do not know, as well as reinvent myself daily, someone who is curious about life and wants to know. I enjoy sharing knowledge.
This is my personal project but I also collaborate in other blogs, it is the case, the most important web on water currently exists in the US, if you are interested you can read my articles here.

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