LIBERO CLKey Features Monitors valuable goods during transport or storage Built in USB and Bluetooth (BLE) interfaces for flexible data access Internal high accuracy digital temperature sensor (30 C to +70 C) Excellent precision: typically 0. 2 C in most temperature ranges Multiple use logger with configurable interval (160 min) and large memory (75,500 readings) Built in PDF report generator, compliant with FDA 21 CFR Part 11 and PDF A standards 2 year