DUAL SENSE - Flame sense works through high voltage connector and edge connector simultaneously
EXTERNAL SENSE -Connector on the board for external sense wire
DIAGNOSTIC-AID LED on board is green to show power to board
Red to indicate power to gas valve
VOLTAGE REGULATOR -Cleans up the 12 Volt supply power
Size 3.25 x 4.25 Inches, Fuse & Surge protected, Microcontrolled.