Sensors identification of a 1.6L 4A-FE engine

Greetings Companeros from the forum

The question that I would like to answer me is that I identify the engine sensors 4a -fe because I have a problem in one of these but I do not know what is the coolant sensor (which is not the temperature sensor) then I show you some photos of my engine so that they tell me which of these is the sensor that I need to identify, in one there is a purely electric part and in the other species of deposit and I don't know what they are.