Explore data loggers or dataloggers designed to record and store temperature, humidity, voltage and other parameters with professional accuracy.
Data loggers or dataloggers: professional solutions for monitoring and control
Data loggers, also known as dataloggers or data recorders, are electronic instruments designed to capture, store and analyse physical or electrical variables over time. They automatically record parameters such as temperature, humidity, voltage, current, pressure, level and energy consumption, providing continuous and accurate monitoring of industrial processes, laboratories, buildings and environmental systems. Thanks to their precision and autonomy, dataloggers have become essential tools for technical supervision, traceability and quality assurance in professional and scientific applications.
How a data logger works and the types available
A data logger integrates one or more sensors, internal memory and a microcontroller that processes and stores the measurements at preset intervals. Depending on the model, data can be downloaded to a computer via USB, SD card, Bluetooth or Wi-Fi. Advanced models include LCD displays, visual and audible alarms, and dedicated software for graphical analysis and data export. Some instruments also allow real-time monitoring through cloud platforms or remote dashboards.
Types of data loggers
There are several categories of dataloggers, each designed for specific measurement tasks:
- Temperature loggers: used in cold rooms, refrigerated transport, laboratories and pharmaceutical storage. External probes extend the temperature range and provide faster response times.
- Humidity loggers: used for HVAC systems, museums, archives, greenhouses and building management to control relative humidity and prevent condensation.
- Voltage and current loggers: ideal for electrical maintenance, solar panel monitoring, battery testing and power quality analysis.
- Multi-channel data loggers: capable of recording multiple variables simultaneously, such as temperature, voltage or pressure, across several analogue or digital inputs.
- Event or pulse loggers: designed to count electrical pulses, record switch activations or measure flow using dry contact sensors.
Advantages of professional data loggers
A professional datalogger offers major advantages compared with manual measurements. It records thousands of readings automatically and continuously, eliminating human error and increasing accuracy. Many models operate for months or even years on a single battery. Digital storage ensures data traceability and simplifies reporting, an essential feature for regulated sectors such as food safety, pharmaceuticals, healthcare and energy. In addition, advanced loggers can trigger automatic alarms when readings exceed defined thresholds, helping to improve preventive maintenance and process reliability.
Applications of data loggers
Data loggers are used in a wide range of industries and applications. In industrial environments, they monitor production processes, ovens, climate chambers and refrigeration systems. In the energy sector, they measure the performance of photovoltaic installations, detect voltage fluctuations and monitor power consumption. In laboratories and research centres, data loggers record experimental variables with precision. They are also widely used in logistics and cold chain management to ensure that perishable goods or medicines remain within temperature and humidity limits. Additional fields include environmental monitoring, meteorology, precision agriculture and predictive maintenance of machinery.
Key factors when selecting a data logger
Selecting the right data logger depends on several technical and operational criteria:
- Type of variable to measure: choose a logger designed for temperature, humidity, voltage or current, or a multi-channel model if multiple variables are required.
- Measurement range and accuracy: ensure the logger covers the required range and offers sufficient precision for your application.
- Sampling rate: some processes demand readings every second, while others only require hourly measurements. Adjusting the sampling interval helps optimise battery life and memory use.
- Storage capacity and autonomy: modern USB data loggers or SD-based models can store thousands to millions of readings for long-term monitoring.
- Connectivity: Wi-Fi or Bluetooth loggers provide remote access and real-time monitoring, ideal for distributed or difficult-to-access installations.
- Software compatibility: ensure the included software allows graphical analysis, Excel export and integration with SCADA or building management systems.
Best practices for accurate and reliable measurements
To achieve reliable results, sensors should be regularly calibrated and kept clean and dry. Avoid sources of vibration, dust or strong electromagnetic interference. Before starting a recording session, define the correct sampling rate and observation period. Data should be downloaded periodically, with backups maintained for long-term records. Analysing data trends helps identify anomalies or drifts. Using a calibrated and certified data logger ensures compliance with quality standards and technical audits in regulated industries.
Electrónica Embajadores: your specialist in data logging and measurement solutions
At Electrónica Embajadores, we offer a comprehensive range of data loggers and dataloggers for measuring temperature, humidity, voltage and many other variables. Our catalogue includes portable, multi-channel and industrial models with various communication options and integrated analysis software. Our technical team provides expert advice to help you select the best device for your application — whether for environmental control, preventive maintenance or process validation. With over thirty years of experience in electronic instrumentation, we guarantee top-quality products, precision performance and reliable after-sales support across the United Kingdom.
