1996 dodge ram question

Sorry to ask a truck question here, but the guys on the truck site either don't know or just don't answer.
I need to replace the coolant sensor on a 318. I know it is located to the left of the radiator hose. Mine is broken, but looks like just one wire goes to it. I picked one up this morning but it has two wires. I'm at work and can't work on it today.
Thanks