The Extech 412400 Multifunction Process Calibrator sources and measures thermocouples (J, K, and T), mA, mV, and V devices. The 24 V loop supply drives current loads up to 1000 ohms. It has memory for 5 user-settable output values of each type for fast calibrations. Single and continuous step function for voltage and current. Comes complete with six AA batteries and a calibration cable with spade lug terminals.