RioRand Portable Mini Temp Recorder 30&Acirc;&deg;c ~ +60&Acirc;&deg;c LCD Temperature Data logger Probe Data Loggers with USB Cable Powered by RioRand Advanced Technology Temperature measuring range: -30c ~ +60c; external sensor: -40c ~ +85c Accuracy: + /- 1 c; Resolution: 0.1c;Record capacity: 16000 points(MAX) Sensor: Internal NTC thermal resistor or external sensor probe; USB interface Directly connect with computer for data exchange, easy operation. LCD display, external probe(auto switch), auto upload data, editable serial number, buzzer alarm