You don't even need to select your sensor type. Simply plug in your probe and you're ready to take readings. It doesn't get any easier. Information is loaded into the memory of the INFO-CON by Hart when you purchase a probe or have a probe recalibrated by Hart. Alternatively, you may load your own information into an INFO-CON through the Handheld Thermometer or from the serial port of your PC with the optional download adapter.
Spare connectors are available.
They connect easily to your probes, and you can program them yourself. The 1521 uses a menu system for convenient access to all functions. Calibration and sensor programming functions are password protected to help prevent unauthorized access. A wide variety of standards-quality probes are available from Hart in many different shapes, sizes, and price ranges. The uncertainty of your probe should be added to the uncertainty of the meter to compute total system uncertainty.