auto meter gauge help.

I have a auto meter water temp gauge, but am missing everything but the gauge, looks like it had a solid copper wire or ? hooked in the back, can the wire and sensor for hooking this back up be bought anywhere, could not find it on auto meter site.
Any help would be appreciated.
Dave

I bought a gauge pillar with 3 auto meter gauges for my cummins off of e-bay, when I got them the tranny temp gauge was stuck at 150 and the pyrometer had a dented bezel and both gauges were missing all wires and temp probes. I contacted auto meter about repair, figured it would still be cheaper that buying new ones, and they said to send them in. I got brand new gauges in the package with all needed wires, probes, and hardware at no charge.

Most mechanical temp gauges come with a tube attached and if it breaks off then the gauge is junk.