Explore Scientific G-11 with Explore Scientific PMC-8-II Electronics. Electronic Specs: Mount specs: All machined aluminum and stainless steel, black anodized. All hardware made from stainless steel. One 3.750” diameter needle thrust bearing; One 2.000” diameter needle thrust bearing; Two 1.500” diameter needle bearings; 5.625” diameter; 7075 aluminum 360 tooth worm gear. Variable slip clutch on both axes. One knob per axis design. Works in Northern and Southern Hemisphere. Altitude adjustment 6-68 degrees. Dovetail saddle-plate fits "D" Losmandy Style or Vixen Style. Removable stainless steel 1-1/4 inch diameter weight shaft w/safety knob and included 21 lbs counterweight. Includes NEW folding tripod; all machined aluminum, black anodized. Folding leg design for easy transporting with height adjustment from 33” - 48”. 60 lbs. instrument weight capacity; Equatorial head weight 33 lbs.; Tripod weight 35 lbs. 7 lbs and 11 lbs extra counterweights optional. Polar scope optional. Included: AC (120-200v) to DC (12v) adapter.