Tydeux AccuFocus Electronic Telescope Focuser

Professional Focusing: Motorized electronic telescope focuser makes achieving sharp focus easy, Smooth and Precise Adjustment: Use the pushbutton hand controller for smooth precise focus adjustments without vibration, Speed Controllable: Choose speeds from coarse to very fine with the adjustable speed control knob, Widely Applicable: Dc motor installs easily and works with many telescopes, Complete Accessories: Also includes bracket; hardware and coil cable; Powered by one 9 volt battery not included