Which sense organs do reptiles use in finding prey?

Hmm your keyword is "Organs"

Reptiles use several organs such as:

Vision (eyes): Vision in reptiles modifies remarkably. Many are totally unseeing, many could only recognize daylight and nightfall, and furthermore many ought to have real piercing vision. 

Hearing (Ears): For reptiles, listening is an example of their secondary sensations. Just a simple internal hearing, reptiles could plainly identify ground oscillations of flat regularity.
 
Smell and Taste (tongue and mouth): Reptiles ought a technoscientifically chemically susceptible gland that is believed to be responsible to beget tastes into essences, and increase his consciousness of his encompassing. reptiles bring out their lingua, apprehending fragments in the atmosphere.