The FlashLink Certified Vaccine USB PDF Data Logger is prequalified by the World Health Organization (WHO) as a Temperature Monitoring Device, under their Performance Quality Safety code PQS E006/047, compatible with FDA, CDC and WHO guidelines. Certificates are available for ISO 17025 and NIST calibration. Monitor temperature conditions inside storage units where vaccines and other temperature sensitive medicines are kept. Sensor Measurement Range -58F to 104F (-50C to 40C) Operating Range -58F to 77F (-50C to 25C) Temperature Resolution 0.1F/C Accuracy within Operating Range 1.0F from -58F to 77F (0.5C from -50C to 25C) Data Capacity 32,496 data points Certification 2 year ISO 17025 calibration certificate, CE Mark, Manufacturers Certificate of Compliance, RoHS compliant. Reference standards traceable NIST. Display LCD, Red LED Alarm Waterproof Rating IP64 (with silicon cap) Download Requirements Direct USB connection to PC (No special software required)