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A data logger is a compact, battery-powered device equipped with an internal microprocessor, data storage, and one or more sensors. They can be deployed in a variety of environments to record measurements at set intervals. The devices automatically monitor and record environmental parameters over time, allowing conditions to be measured, documented, analysed and validated. The data logger contains a sensor to receive the information and a computer chip to store it. Then the information stored in the data logger is transferred to a computer for analysis. Discover more in our [data loggers guide](/web/content/discovery/ideas-and-advice/data-loggers-guide).

### What data and measurements can a data logger collect?

Depending on the particular data logger, measurements and parameters can include air temperature, humidity, AC/DC current and voltage, differential pressure, time-of-use (lights, motors, etc.), light intensity, water temperature, water level, dissolved oxygen, soil moisture, rainfall, wind speed and direction, leaf wetness, pulse signals, room occupancy, plug load, and many more.

### What are the key features of a data logger?
- The devices are usually compact and portable for use in the field and in the laboratory.
- Data can be measured automatically using computer control, meaning there is no need for a physical presence, saving on a valuable resource.
- Some data loggers have a handy USB plugin interface or a wireless Bluetooth feature that enables the transfer of data to be even easier and more convenient.
- The data loggers can be accessed remotely, and readings can be stored to bring back to the laboratory or office after the data has been collected in the field.
- Some data loggers have an IP rating to withstand environmental elements while collecting data.
- Data can be collected 365 days a year, 24 hours a day.

### Applications of data loggers include:
- Environmental Monitoring - to track temperature, humidity, air quality, and light levels in environmental studies, HVAC systems, agriculture, and research projects
- Industrial Processes - help with monitoring and optimising e.g. pressure, flow rate, voltage, and current
- Energy Management – help track electricity consumption, solar panel performance, and environmental conditions
- Research and Development - they assist in areas such as biology, chemistry, physics, and engineering, supporting evidence-based discoveries and innovations

### How do you use a data logger?
- Download and install software on a mobile device or laptop
- Connect to the data logger and launch parameters
- Place in location and record data for the desired time
- Reconnect to the data logger via mobile device or laptop
- Download data file and readout with analysis software


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Data Loggers | Data Recorder | RS

Data Loggers

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Shop our range of Gemini Data Loggers. Browse our latest Gemini Data Loggers offers. Find out more today at RS.

Gemini Data Loggers | RS

Shop our range of Voltage Data Loggers. Browse our latest Voltage Data Loggers offers. Find out more today at RS.

Voltage Data Loggers | RS

Buy Fluke Data Loggers. Browse our latest Fluke Data Loggers offers. Fast and hassle free delivery.

Fluke Data Loggers | RS

Buy from our selection of Data Loggers from Lascar. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Lascar Data Loggers | RS

Buy from our selection of Data Loggers from Testo. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Testo Data Loggers | RS

Shop our range of Temperature & Humidity Data Loggers. Browse our latest Temperature & Humidity Data Loggers offers. Find out more today at RS.

Temperature & Humidity Data Loggers | RS

<p>Temperature and Humidity data loggers are a great addition for accurately measuring and recording data points are predefined intervals. Depending on your environment its important to measure humidity and temperature for example in food processing factories or when transporting goods as it can constantly measure the data points to enable you to take action if need be.</p><p>A temperature data logger are capable of monitoring how cold or hot environments or machinery gets with great ranges. With our RS PRO range of temperature data loggers having the ability to measure temperatures to 3200 degrees Celsius. </p><p>The interface of these data loggers include USB, Bluetooth and WiFi, which allow for monitoring and measurement either on the move or stationary.</p><h2>Why choose RS for Temperature & Humidity Data Loggers?</h2><p>RS has a large range of temperature and humidity data loggers from some of the leading brands such as Lascar, Testo, Pico Technology and our very own brand RS PRO. Our range of temperature and humidity data loggers can be calibrated to ensure accuracy and precision of the measurement data points.</p>

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Temperature Data Loggers | RS

<p>Temperature data loggers offer an accurate measuring and recording of temperature data points between intervals. These loggers coupled with temperature probes can record and measure large ranges of temperatures, to ensure you're kept up to date on any changes so they can be actioned promptly. The great thing about some data loggers is that they don't need setting up every time, and can be repeatedly used for test purposes.</p><p>Temperature data loggers with a temperature probe can monitor and record how cold and hot environments or machinery. With our RS PRO range of temperature data loggers, they have an integrated solution of measuring high temperatures. The interface of these data loggers can be through USB, or completely wireless through Bluetooth or WiFi, which can allow portability of your logger.</p><h2>Why choose RS for Temperature Data Loggers?</h2><p>RS has a predominant range of temperature data loggers from some leading brands such as Lascar, Testo, Corintech, Pico Technology and our very own brand RS PRO. The availability of having a calibrated temperature data loggers which will ensure high levels of accuracy and precision of the measuring points.</p>

Shop our range of USB Data Loggers. Browse our latest USB Data Loggers offers. Find out more today at RS.

USB Data Loggers | RS

<p>USB data loggers can offer the measurement and recording of various parameters at various data points, but have the added USB connectivity. Being USB connected allows to be connected via a computer or other mobile devices that have a USB port. Having increased portability allows USB data loggers to be left anywhere to monitor data points, however the measurements can be collected as often as you like. With this increased USB loggers cover a large range of parameters from temperature, voltage, humidity to name a few. Depending on the environment being used in some USB data, loggers are ideal for harsh environments with an IP67 rated protection against water.</p><h2>Why choose RS for USB Data Loggers?</h2><p>RS has a fantastic range of USB data loggers from some leading brands such as Lascar, Testo, Corintech, Pico Technology and our very own brand RS PRO. The availability of having a calibrated thermocouple data loggers which will ensure high levels of accuracy and precision of temperatures.</p>

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