Pressure, Temp & Environmental · 4 min read
Data Logger Calibration
Data loggers are the silent witnesses of cold-chain and storage compliance. If a logger is off, your entire record of "product stayed in spec" is off with it.
Part of our guide to Pressure, Temperature & Environmental Calibration.
What gets verified
Loggers are calibrated by exposing them to known, stable conditions (temperature, and humidity where applicable) at several points and comparing their recorded values to a traceable reference. Because loggers are used unattended for long periods, stability and the accuracy of the recorded value — not just an instantaneous reading — are what matter.
Where it counts
Pharmaceutical cold chain, vaccine storage, food safety, and environmental monitoring all rely on logger data as compliance evidence. A traceable calibration with data at each point, plus uncertainty, is what lets that evidence stand up. Match the calibrated range to the conditions the logger actually monitors.
Common questions
How often should data loggers be calibrated?
Typically annually, or per your quality program and the criticality of what they monitor. Cold-chain and regulated storage loggers are often on a strict annual interval with documented justification.