USB PDF Data Logger with special stainless steel probe allows temperature measurements from -200C to 40C for cryogenic applications such as liquid nitrogen tanks. This reusable logger has a built-in USB connector makes it easy to program and download the logger without special reading devices. No added software necessary. Probe Measurement Range (-200C to +40C) Operating Range (-20C to 50C) Temperature Resolution 0.1F/C Accuracy 0.5C from -196C to 40C Data Capacity 16,000 data points Battery Two AAA Lithium batteries Casing ABS plastic Certification CE Mark, NIST traceable, RoHS Compliant FAA Compliance RTCA/DO-160 Display LCD, Red LED Alarm Waterproof Rating IP64 with silicon cap on System Requirements Windows PC with current operating system, Adobe Reader Download Requirements Direct USB connection to PC