WHO PQS Listed- Small and Portable easily tucked into boxes, qualified for Air Transport Monitoring. Applied in vaccines, blood products, pharmacies, perishables delivery and distribution. Secure Light Sensor - Which Can Sense and Record If The Box Is Opened During Transport. Auto PDF Report - Auto PDF Report with Embedded Data no software required to access data file. Mark Event- Double click the button to mark current temperature and time when encounter a special temperature or time, up to 10 groups of data. Value Visibility - Current temperature and MAX MIN value can be obtained from the large LCD screen. Over Temperature Alarm - LCD and LED alarms help you find the abnormal cases in time. Single-button - Easy to start, stop, and switch between different interfaces. Webpage or Software configuration - The data logger can be configured quickly through webpage without software. Temperature unit switch, alarm range, logging interval settable. What You Get - Data Logger, Calibration Certificate, User Manual, Elitech 12-months Warranty & 24/7 Customer Support Access via Email and Phone. Why Elitech - Focus on the research and development of life science and food cold chain full-process data visualization products. Applied in vaccines, nucleic acid detection, IVD, blood products, hospital pharmacies, CDC, cold chain logistics, warehouse management and other fields.