ICM offers low cost, direct wire for wire replacement furnace controls for many popular OEM models. Our furnace controls come standard with many safety features including 100% gas shutoff in case of ignition failure. Control gas valve, ignitor, blower motor, inducer, humidifier and air cleaner. Microprocessor-based. Designed for 100% gas shutoff in case if ignition failure. Model selection of 80+ and 90+ furnace operation. Reverse polarity protection. Functions with all 24 VAC thermostats. Secondary brownout voltage protection. Heating and cooling fan functions in response to standard thermostat. Providing diagnostic LEDs to aid in troubleshooting. Twinning compatible with another ICM281 board.