Machine Design

Detector gadget

A foldable, lightweight metal detector is easy to tote while camping, hiking, or backpacking.

The MD28 handheld metal detector is a great accessory to bring along when hiking, camping, backpacking, or even strolling on the beach.

This metal detector from Famous Trails, San Diego, is lightweight, durable, accurate, and easy to use. It works on one 9-V battery and measures 27 X 14.5 X 5 cm. A simple electrical design with only an on/off switch and sensitivity control make the unit user friendly, and the fact it detects all metals

adds to its practicality. With its foldable handle, it easily slides into a backpack for on-the-go treasure hunting. Beyond the fun factor, the MD28 can also be used for security in schools and other public places.

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