Portable Lifter CM Series has easy setup, easy level, easy fit, and variable speed electric lifting capabilities There are two Portable Lifters available the CM340 and CM520. Each is a compact unit that is easy to transport and can setup in under 30 seconds. These multi-purpose lifters are perfect for air conditioners, awnings, garage doors, glass, windows and more. Telescoping Legs - For uneven surfaces such as stairways, slopes, etc. Leveling Mast - Ensure mast is vertical before operation. Telescoping Mast - Compact, Strong and Light - made with robust, specially heat-treated aluminum. Electric Motor (110 Volt) - Variable speed controller with long cable and belt clip. Manual Controls - lf no power available, use electric drill or handle to wind lifter. Emergency Stop Button - Also used to switch to manual control. Setup in 30 seconds - No tools required. Overload Cut-Out - Fitted with overload clutch for safety. Wheels for Mobility - Included with CM520 - optional accessory with CM340. Retractable - Lift loads adjacent to wall. Fine Positioning - Align load precisely with variable speed controller. Models Basic Height Lifting Height Max Load Capacity Lifter Weight Lifter Platform Dimensions-Stowed Dimensions-Operating CM-340 38 Inch 11 Feet 290 lb - 10 ft 46 LBS 11 LBS 12 x 12 Inch 38 x 38 Inch CM-520 46 Inch 16 Feet 260 lb - 11 ft 83 LBS 11 LBS 15 x 15 Inch 56 x 56 Inch