... set and configured flexibly, up to four stages.Could select relay, SSR drive, SCR as control methodCould select 5VDC, 12VDC, ... SCR output (100-240VAC/0.2A)G: Solid-state relay slaving voltage (DC12V/50mA output)K1: single-route SCR ... PID temperature controller, Program temperature cotnroller,temperature controller. KH102T: Auto production line digital process indicator with infrared barcode scanner