A CDC / VFC compliant ISO/IEC 17025 NIST traceable temperature data logger for monitoring & recording temperatures of vaccines in refrigerators or freezers. The UTREL30-WiFi measures and stores up to 16,129 readings without needing off loading of data, thats 5 months of recordings @ 15 minuite intervals. Logger automatically uploads data to the Online cloud "LTO" giving you real time temperatures and alarm notifications.