Microcomputer Based Gas Ignition & Primary Safety Control Designed for Interrupted Spark and Burner Supervision of All Gases Used in Gas Fired Appliance Applications.Features: Field service replacement for most Honeywell, Robertshaw, Johnson Controls andUTEC Intermittent Pilot Ignition Controls. Provides ignition, proof of ignition and precise timing. Color LED indicator for diagnostics Works with single rod or dual rod remote sensor.