With a stability of +/- 0.5 *C, it has a temperature range to 1200 *C and a display accuracy of +/- 5 *C across its entire range.
With interchangeable temperature blocks, you can check thermocouples as small as 1/16 of an inch in diameter. The 9150 works with 115 or 230 VAC power.
The 9150 Thermocouple Furnace uses Harts own microprocessor-based controller for great stability and set-point accuracy. It has a removable well insert for versatility. It has rapid cool-down and heat-up times. And it comes with an RS-232 port for connection to a PC.