GPS module for the entire Celestron CGE, Advanced Series, and NexStar i-Series of telescopes. New-in-Box, NEVER-USED. This unit was going to accompany a CGE-1100, but I decided to purchase a Takahashi FSQ-106N with the EM-200 TEMMA-2 mount instead. Cost me $199+shipping. Will sell of $149 and I pay UPS ground to ConUS. Prefer payment via PayPal.