What is a Data Logger Used For?

What is a Data Logger Used For?

Before discussing a data logger‘s various uses and applications, one must understand a data logger‘s definition. A data logger is an electronic device or instrument that you can use to record data over-time and at intervals. It has different types that register different data and vary in application.

What is a Data Logger?

It is an electronic device, which records data over certain timings. Some of the essential parameters that it records include temperature, pressure shock, current, humidity, or voltage. The functions of recording such data apply to facilities such as factories and other industrial locations.

It can also measure and record the data of carbon dioxide, pH balance, pulse, and pressure. Hence, data loggers have extensive and diverse use. An electronic device consists of internal memory for storage, a microprocessor for operations, and sensors that indicate and identify the variable data in its most basic form.

More complex data loggers have features comprising control functions, input keypad, LCD screen, and communications that include email and messaging. Some data loggers are design-specific for environments and applications, while others provide versatility.

They can operate as standalone devices or be connected to a computer for data download or configuration. These data loggers range in complexity; some devices are more economical and have a single channel fixed function, while others have the computing power to process multiple data at a time.

Data Logger Advantages

Data loggers are superior in data recording when comparing them to other types of instruments because of their simplicity. Once configured, there is no need to connect them to a computer for them to function. Their ability to run unattended for several months provides a more detailed picture of their monitoring conditions.

The data they gather over a long period is more precise and accurate because of the overtime analysis. The recorded data can encompass electrical data, harmonics, and temperature and then download them into a computer for further display and analysis.

How is a Data Logger Used?

Data loggers help record parameters and data without being physically present on the site. It not only helps record but also continuously monitors the parameters. Typically, occupants who use data loggers include facility managers, engineers, energy auditors, water engineers, environmental consultants, and other professionals who need to record and check a given facility.

Research scientists can also use data loggers to run their research regarding environmental and electrical variables. Furthermore, a data logger can help energy auditors determine how many electrical energy units a particular facility uses in a month. Similarly, it can help environmental consultants figure out how much carbon is emitting out of a given industrial facility.

By tracking the proper electrical usage of a facility, an operator can easily manage peak demands by keeping track of a facility’s energy output, reducing costs. Engineers can also monitor electrical, mechanical, and other performance problems with the help of data loggers.

Data loggers not only identify the problems but also monitor the corrective measures. They become crucial for fine-tuning and addressing the effectiveness of the corrective measures.

Air quality loggers, such as temperature data loggers, can monitor indoor air temperature and quality. They also monitor water usage, including temperature, flow, and pressure. Data loggers mostly come with software that integrates the data and performs tasks. This software also provides data graphing, export, and report generation. Real-time measurements and configuration are also possible with the use of a data logger.

Types of Data Logger

Many different factors will affect which is the most suitable data logger. Speak to a packaging consultant to help decide on the most relevant for each industry and application.

Input Signal

Some data loggers have a design that only allows a single input, such as current or voltage. However, others come with a multi-channel design that configures many inputs. For this application, the size of the data logger becomes a factor.


Size is also a critical selection factor; a higher memory recording rate requires extra storage. Thus,  determining the memory-recording rate and duration when selecting a data logger is important. This information helps calculate the required memory and is pivotal when determining the data logger price.

In some applications, it is more beneficial to display measurement data in real-time. By doing so, the status of the system while the recording progresses can be monitored. The alarm function is also essential when monitoring a parameter that needs to restrict its critical range, for example, temperature data-logger monitoring at a cold storage facility.


Accuracy specifications vary widely in terms of different types of data loggers. Understanding the exact and accurate measurement required can prevent the purchase of the wrong data logger.


The data logger‘s design should be specific to adhering to the conditions and environment surrounding the particular location. Alternatively, general-purpose data loggers can suffice in any site regardless of the conditions.

Data Download

Data can be downloaded by removing the instrument’s memory card and inserting it into the computer. In environments where this imposes difficulty, instruments that can communicate directly to the computer through USB cables, WiFi or Bluetooth will be helpful.

To Conclude

Consider the range and accuracy needed before investing in a data logger. Data loggers include a wide variety of prices, sizes, consistencies, and applications. They continuously evaluate and monitor parameters without human involvement.