Hart's LogWare software is a real-time data acquisition software package that can be used with all of Hart's single channel digital thermometers including: 1502/1502A "Tweener" Thermometers, 1503 "Tweener" Thermometer, 1504 "Tweener" Thermometer, 1521 LLK Handheld Thermometer, 1522 LLL Handheld Datalogger