Goa'uld homing device

Goa'uld homing device is a device designed by the Goa'uld.

Overview
Homing is a device that is designed to find and give direction even to the distance to a target. And the viewfinder is probably driven by naquadah.

History
In 1997, Teal'c mentioned that Goa'uld use of homing devices on their behalf. He also told us that when he was on the Gaia first time so he and his men did not bring any homing devices on their mission.