Reznor 43594 Flame Sensor 326010-701 Robust Construction: The forged brass

Robust Construction: The forged brass housing provides superior pressure ratings and corrosion resistance compared to cast alternatives

Contractors trust its rugged aluminum body and wide ambient temperature range—from -40°F to 175°F (CSA)—for long-term service in rigorous industrial and residential environments

Fixed Setpoints: Pre-calibrated 35°F open and 58°F close logic eliminates the need for field adjustments and ensures consistent thermal protection

this unit delivers a standard reference resistance of 1

Is the 121L0601 compatible with R22 systems

Reznor 43594 Flame Sensor 326010-701 Robust Construction: The forged brassThe Reznor 43594 Flame Sensor is a critical safety component designed for precise flame rectification in high performance heating equipment. As an authentic OEM Reznor part, it ensures the ignition module receives a consistent microamp signal (typically between 3 to 10 A), preventing the short cycling or lockout issues common with worn or carbon fouled sensors. Engineered to withstand the intense thermal stress of gas fired unit heaters, this sensor