A data logger is a device that automatically records environmental measurements over time, such as temperature, humidity, or shock. Common examples include temperature loggers used in food and pharmaceutical shipments, humidity loggers in warehouses, and shock loggers for fragile electronics. This article covers what data loggers do, the most widely used types, and how paper-based loggers are changing cold chain monitoring.
What is a data logger, and what does it actually do?
A data logger is an electronic device that automatically captures and stores measurements from its surrounding environment at set intervals. Rather than relying on manual checks, it records conditions continuously throughout a journey or storage period, creating a reliable, timestamped record that can be reviewed later.
The variables most commonly tracked include temperature, humidity, light exposure, and shock or vibration. Each of these matters in different contexts. Temperature is critical for perishable food and medicines. Humidity affects seeds, paper, and electronics. Shock data reveals whether fragile goods were handled roughly in transit.
Automated logging outperforms manual recording in two important ways. It removes human error from the equation, and it captures data at consistent intervals, even overnight or across time zones, when no one is physically present to take readings.
What are the most common examples of data loggers in use today?
Data loggers appear across a wide range of industries, each serving a specific monitoring need. Here are the most frequently encountered types:
- Temperature loggers in food cold chains — Used in refrigerated trucks, shipping containers, and storage facilities to verify that perishable products such as meat, dairy, and fresh produce stay within safe temperature ranges from origin to delivery.
- Temperature loggers in pharmaceutical logistics — Medicines and vaccines often have strict temperature requirements. Loggers provide the documentation needed to confirm compliance throughout the supply chain.
- Humidity loggers in agriculture and warehousing — Seeds, grains, and certain raw materials are sensitive to moisture. Humidity loggers help prevent spoilage and maintain product quality during storage and transport.
- Shock and vibration loggers in electronics shipping — Fragile components can be damaged by rough handling. These loggers record impact events so that responsibility can be clearly assigned if damage occurs.
- CO2 loggers in controlled-atmosphere storage — Used in fruit storage facilities where gas composition is carefully managed to slow ripening and extend shelf life.
- Multi-channel loggers in industrial environments — These capture several variables simultaneously, making them useful for complex manufacturing or research settings where multiple conditions need to be monitored together.
How does Tapp redefine cold chain data logging?
Traditional electronic data loggers are made from plastic and powered by lithium batteries. Over 80 million are discarded every year, creating a significant e-waste problem. Electronic data loggers require specialist e-waste disposal, whereas Tapp’s paper-based data loggers are recyclable through standard paper waste streams globally, making disposal straightforward for any business.
As the only provider of paper-based data loggers, Tapp has built its solution around a substrate made from agricultural-waste paper, paired with a lithium-free battery. This battery design is worth highlighting: because it avoids lithium entirely, it is flight-safe without special declarations, and it does not carry the disposal restrictions that come with lithium cells in single-use plastic loggers. The result is a logger that is easier to ship, simpler to dispose of, and far less harmful to the environment.
Reading the logger requires no dedicated hardware or app. Any NFC-enabled smartphone can tap the label, and the data uploads automatically to the TappOS cloud dashboard, accessible to both sender and receiver. The logger also carries EN12830 certification, the recognised European standard for temperature-recording accuracy in transport.
Key advantages at a glance:
- Up to 90% less e-waste compared to plastic alternatives
- Lithium-free, flight-safe battery with no special disposal requirements
- Recyclable through standard paper waste streams worldwide
- No app, software, or USB connection needed to retrieve data
- EN12830-certified accuracy across road, sea, air, and rail shipments
- Automatic cloud upload to TappOS on every smartphone tap
If you want to see how paper-based logging works in practice, visit tapp.online to learn more or request a sample for your next shipment.
