supporting legacy repairs and modern retrofits

Field Reliability: Direct digital upgrade for the legacy 200-503 model

and cleanroom pressurization where maintaining a precise pressure boundary is a non-negotiable requirement for contractors

Fast Installation: The U-bolt tall mount design and self-calibrating stroke reduce labor time during HVAC valve replacement

This package includes a precision-machined valve stem

Laars Heating Systems R0360900 Flame Sensor 319847-401 supporting legacy repairs and modernThe Laars Heating Systems R0360900 Flame Sensor is a high precision OEM replacement part engineered for specific gas fired hydronic boilers and water heaters. Designed for direct spark ignition systems, this flame ionization sensor monitors combustion stability by detecting the presence of a pilot or main burner flame. This crucial component ensures the ignition module receives a consistent micro amp signal (typically ranging from 5 to 30 micro amps),