The MTP interface module is designed to convert a variety of input signal types (including 0-20 mA, DC voltage, 135 ohm thermostat and 100-1000 ohm potentiometer) to a fast pulsed 20VDC signal capable of driving one or many Solid State Relays (SSR’s). The MTP also features a 63-100% output limit adjustment. The MTP interface comes standard with a 500 ohm potentiometer w/ two feet of wire, 0-100% dial and knob for panel mounting.