What is a Data Logger? Types, Benefits & Cold Chain Uses Explained | Cold Chain Monitoring Guide A data logger is an electronic device designed to automatically record environmental conditions such as temperature and humidity over time. In cold chain logistics, it plays a critical role in ensuring that temperature-sensitive products like pharmaceuticals, vaccines, food, and biologics remain within safe temperature ranges during storage and transportation. Data loggers work using built-in sensors that continuously measure temperature at predefined intervals. These readings are stored in the device’s memory and can later be accessed via USB, Bluetooth, or cloud-based systems. Advanced models even provide real-time alerts if temperature thresholds are breached, helping businesses take immediate corrective action. Visit us: https://www.allwincoldchainsolutions.com/blog/what-is-data-logger-types-benefits-cold-chain-uses