Have original box and manual.
The Pictor 201XT Autoguider can be used on any telescope equipped with a dual-axis drive corrector. On Meade LX50 and LX200 Schmidt-Cassegrains, #1697 CDS-equipped ED/APO Refractors, and on other telescopes that have a phone-jack "Autoguider" connector, the 201XT simply plugs into the telescope's control panel. On telescopes with retrofitted drive correctors (i.e., telescopes where the drive corrector is not integrated into the electronics of the telescope itself) the optional Meade #520 Electronic Relay permits interfacing between the 201XT unit and the drive corrector.
The Pictor 201XT is an autoguider only and can not be used for imaging. No personal computer or separate control box is required. Used with an off-axis guider or auxiliary photo-guide telescope, the 201XT automatically locks-on to the brightest star, a star that can be as faint as magnitude 12. The 201XT is so sensitive that, under reasonably dark-sky conditions, it locks on to a guidestar in almost any randomly chosen star field. The 201XT is capable of using guidestars so faint they often can not be seen visually through the off-axis guider in the guiding field. With the guidestar locked-on the 201XT then sets the integration (exposure) time and actuates all required dual-axis corrections for perfectly guided astrophotographs. Use it once and you'll never guide manually again!