White Rodgers 30-46-005S1 flame sensors are designed to enhance the safety and efficiency of gas burner systems. Featuring a robust snap-action switch and a powerful mercury-actuated thermal element, these sensors provide reliable flame detection and prevent gas flow when a pilot flame is absent or inadequate. Suitable for natural, manufactured, or mixed gases, they are ideal for residential and commercial applications requiring automatic pilot gas shut-off. The easy-to-remove cover allows for convenient access to switch terminals, simplifying maintenance and adjustments.