The sensors in their snout are called Ampullae of Lorenzini. https://en.wikipedia.org/wiki/Ampullae_of_Lorenzini#:~:text=The%20ampullae%20of%20Lorenzini%20are,

The sensors in their snout are called Ampullae of Lorenzini. https://en.wikipedia.org/wiki/Ampullae_of_Lorenzini#:~:text=The%20ampullae%20of%20Lorenzini%20are,network%20of%20jelly%2Dfilled%20pores.&text=Teleosts%20have%20re%2Devolved%20a,electric%20fields%20in%20the%20water https://en.wikipedia.org/wiki/Ampullae_of_Lorenzini#:~:text=....