2005 50HP 2-stroke outboard heat sensor switch

I have what looks like 2 heat sensors, one on the top cylinder and one on the middle cylinder. Are both of these heat sensors? If so, what is the designed closing temperature in Fahrenheit on both? If only one is a heat sensor, is it the top one or the middle one? Thanks for your help.

[boats.net]

The one pink and black wires is the overheat sensor for warning system, activates at 199 degrees.