Omega Engineering”s handheld HH147 is a rugged, easy-to-use thermometer/data logger with four standard miniature connector inputs. It can display four inputs simultaneously and accepts seven types of thermocouples. The integrated data logger stores up to 10,000 records. Other features include °C/°F/°K readings, max/min/avg/hold functions, differential measurement displays of T3-T4, low battery indicator, perpetual calendar, and auto power-off. The thermometer comes with an RS232 interface cable and Windows-based software for displaying and storing data on a computer. Battery life is 1,000 hours.