Innovative Detector Challenge Mircoscope 75 adapter adds 3 mm

75 adapter adds 3 mm

The metal detector has a second coil of wire in its head (known as the receiver coil) that's connected to a circuit containing a loudspeaker

Battery not included

The EXOS2 Polar Finder Scope has Polar Assist markings to help you efficiently accomplish a proper polar alignment

and star clusters

Innovative Detector Challenge Mircoscope 75 adapter adds 3 mmFeatures 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.