TEMPer High Accurate USB Thermometer Temperature Sensor Data Logger Record for PC Laptop Supply API function for all of win OS, Die-cast and electroplated housing. Waterproof and sensitive sensor. Temperature measurement range: -55 to +125 degrees Celsius/ -67 to +257 degrees Fahrenheit. Email, MSN remote view, Data record to file, dynamic curves, alarm. With Num Lock Caps Lock, can directly read temperature through excel or other text files, this function supports DOS, Windows, Linux, MAC. Application range: indoor and outdoor temperature detection, machine room and storeroom environment monitoring, superstore, drugstore air condition temperature control and monitor, farm, vege.