Innovative Detector Challenge 900x microscope kit Each eyepiece is meticulously assembled

Each eyepiece is meticulously assembled into precision machined metal lens barrels that maintain the perfect alignment of the optical train for years of rugged use in the field

Large handwheels - can also be operated with gloves

or find that steamy hot cup of coffee before you knock it over and spill it in your lap

Each lens also is fully multi-coated with durable enhanced multi-layer deposition (EMD) coatings

Width 50mm

Innovative Detector Challenge 900x microscope kit Each eyepiece is meticulously assembledFeatures Learn how metal detectors work Build a handheld metal detector with adjustable sensitivity Discover how security checkpoints function by assembling a mini version Explore the effects of parabolic motion on metal detection with an aim and shoot game Test your hand eye coordination by creating fun maze challenges Description Explore the relationship between electricity and magnetism with this metal detector challenge set from Explore Science.