Meiji Techno, EM-23, LED Binocular Stereo Rechargeable Microscope Entry-Level 1X, 2X, 4XIntroducing Meiji Techno America's new Binocular EM-23 Triple Turret Stereo Microscope features fixed magnifications of 10X, 20x and 40X. Designed with ergonomics in mind it is equipped with a Binocular 45° inclined tubes. The EM-23 is a complete microscope system which includes the 10X/20mm eyepieces, Incident and Transmitted LED rechargeable stand with dual variable intensity controls, Turret Stereo Microscope Body. The EM-23 includes energy-efficient variable LED illumination dual spring loaded stage clips and One ± 5 diopter adjustment, Interpupillary distance adjustable between 55 mm and 75 mm. Supplied with locked in eyepieces to avoid slippage and theft. The stand is also equipped with an Auto Voltage Sensing Power Supply. Ideal for K-12, middle School, Junior High, High School classroom. This new series of stereo microscopes is affordable and built with a cast aluminum frame.Included:Dust Cover for EM-20 SeriesRubber Eyeguards for the EM-20 Series (paired) includedEM-20 Series Meiji Techno Instruction Manual includedThe EM-20 features include:MagnificationTriple Interchangeable Rotatable Turret 1X/2X/4X Objective10X, 20X and 40X magnification with 10X eyepiecessOptical SystemPaired widefield 10X eyepieces are 45° inclined, with diopter adjustment.Locked in eyepieces to prevent being pulled out or theftInterpupillary adjustment from 55mm to 75mm.Rack and pinion design. Ergonomically designed base with 2 spring loaded object clamps.Alloy metal cast, hardened off-white coated, small compact space saving footprintBuilt-in rechargeable 1.800 mAh battery and external power supply.Paired objectives are parfocalled, parcentered, and achromatic.All optical parts are anti-fungus treated.Magnification changed by rotating lower turret magnification objective case.Paired Raised Rubber EyeguardsCustom Vinyl Dust CoverIlluminationIncident and Transmitted LED rechargeable stand with dual variable intensity controlsLED illumination will not give your specimen any external stress or denature your alcohol quickly because there is no heat transmitted to the sample.LED illumination is rated for 5,000 hoursVariable Incident and transmitted LED controlsVariable controls allow switches to allow independent top, bottom, or simultaneous top and bottom illuminationLED lights rated up to 10,000 hours of life.Batteries allow recharges, for a total of 10,000 hours use from a single set of 3 AA rechargeable nickel hydride batteries.Cost efficient recharger power supply supplied. Plugs directly into wall outlet.Auto Voltage Sensing Power supply.FocusingRack and pinion focusing with slip clutch and tension adjustment.'Slip-clutch' system protects against over-focusingStage6" Glass Stage Plate and6" Plastic Black and White Stage PlateLocked-on spring loaded stage clipsFrameRugged, cast metal frameWhite enamel paint finish.Microscope Height: 12.5 in.Base width: 7.0 in.