Lochinvar & A.O. Smith 100109966 Flame Sensor 321894-708 the A30-301 is the designated

the A30-301 is the designated direct replacement for the 3030-601 model

The RT121 is designed for low-pressure monitoring with a maximum working pressure (PS) of 7 bar and a maximum test pressure of 8 bar

this sensor provides superior stability and long-term accuracy compared to standard thermistors

Rugged Construction: Built with an all-steel case and cover to protect internal components in demanding mechanical room environments

contractors can extend the service life of existing fluid control infrastructure without necessitating a full valve body replacement

Lochinvar & A.O. Smith 100109966 Flame Sensor 321894-708 the A30-301 is the designatedThe Lochinvar & A. O. Smith 100109966 Flame Sensor is a critical diagnostic component designed for precise flame rectification in high efficiency commercial boilers and water heaters. This OEM replacement flame sensor (formerly part number 9004526005) ensures the burner control module receives a consistent microamp signal, preventing nuisance lockouts and ignition failure. Constructed with high grade alumina ceramic insulation and a durable Kanthal