The Seiler Alpha Air 3 ENT Microscope is a high quality ENT microscope with three levels of magnification, apochromatic lenses for superior optics, standard 150,000 LUX LED illumination and a specially engineered Gas Piston Pantographic Arm for superior maneuverability. Warranty: Lifetime - Optics and Mechanics. The Seiler Alpha Air 3 ENT Microscope is a multi-purpose, extremely powerful microscope. It uses high quality German optics and the brightest standard LED light source on the market. The Air 3 has a compact design that allows it to function in any environment, no matter the size constraints. Features Seiler Alpha Air 3 ENT Microscope Features Three-Step Turret magnification system. LED illumination + 150,000 LUX. 10x widefield eyepieces with dioptic locks. True Coaxial Illumination: Shadow Free. USB and 12 VDC power support directly on optic pod. Red free filter standard. Five Mounting Options Available: Floor, Wall, High Wall, Ceiling, and Tabletop. Two Head Options Available: Fixed 45° Head or Inclinable 0 - 220° Binocular Head. Specifications Seiler Alpha Air 3 ENT Microscope Specifications Weight: 162 lb (73.48 kg). Working Distance: Minimum possible: 6.89" (175 mm). Maximum possible: 15.75" (400 mm). Microfocus Vertical Adjustment Range: 13 mm. Objective Lens: Standard Setup: Æ’=250 mm. Optional Setup: 175 - 400 mm. Eyepieces: Standard Setup: 10x. Optional Setup: 12.5x, 16x, 20x. Diopter Setting: -6 to +6. Field of Vision: Standard Setup: 9 - 72 mm. Optional Setup: 4.95 - 105.88 mm. Magnification Levels: Standard Setup: 2.8x, 4.8x, 5.3x, 8.7x, 11x, 17x. Optional Setup: Max Low: 1.7x. Max High: 48.5x. Power Supply: Mains Power 96 - 264 VAC; 47 - 63 Hz. Auxiliary Power Jack: 12 VDC 1.0 A maximum. Fuses: (2) 3 AMP 250 V Fast Blow 5x20 mm. Illumination Bulb: USB 2 Jack; 5.0 VDC; 1 AMP. Power Cable: IEC 320/C13 Hospital Grade. Light Source Type: LED. Color Temperature: 5700 CCT. LED Life: > 50,000 hours. Typical Illuminance: 120,000 - 150,000 LUX. Operating Temperature: 50° F - 70° F (10° C - 25° C). Storage Temperature: 38° F - 122° F (10° C - 50° C). Operating Relative Humidity: 30 - 75%. Storage Relative Humidity: 0 - 100% Non-Condensing. Air Pressure: 700 HPA to 1060 HPA. Configurations Seiler Alpha Air 3 ENT Microscope Configurations #AA3-ENT1-LED: Floor Mounted Unit with Fixed Head. #AA3-ENT2-LED: Wall Mounted Unit with Fixed Head. #AA3-ENT3-LED: High Wall Mounted Unit with Fixed Head. #AA3-ENT4-LED: Ceiling Mounted Unit with Fixed Head. #AA3-ENT5-LED: Tabletop Mounted Unit with Fixed Head. #AA3-ENT1-LED220: Floor Mounted Unit with Inclinable Head. #AA3-ENT2-LED220: Wall Mounted Unit with Inclinable Head. #AA3-ENT3-LED220: High Wall Mounted Unit with Inclinable Head. #AA3-ENT4-LED220: Ceiling Mounted Unit with Inclinable Head. #AA3-ENT5-LED220: Tabletop Mounted Unit with Inclinable Head. Literature Seiler Alpha Air 3 ENT Microscope Literature Seiler Alpha Air Series Brochure Seiler Alpha Air 3 User Manual