Is the mixing tube included with this sensor

it is compatible with any system utilizing a 1-1/4"-12 Rotalock thread and 7/8" piping

Precise Thermal Calibration: Factory-set 115-140F range provides accurate over-temperature protection without drift

While some universal relays exist

button with screw

Lochinvar & A.O. Smith 100326985 Ignitor 30067439-890 Is the mixing tube includedThe Lochinvar & A. O. Smith 100326985 Ignitor is the genuine OEM replacement for the legacy 100165860 and PLT1151 ignition assemblies. Designed for high efficiency gas fired heating systems, including Lochinvar Knight boilers and Armor water heaters, this hot surface ignitor features a robust silicon carbide or nitride construction to withstand the high temperature environment of the burner assembly. This kit includes the necessary gasket to ensure a