This is an extremely geeky app. The Metal Detector app available only for Android is exactly what it says on the tin. By making use of the HTC T-Mobile G1’s built-in magnetometer which the G1 uses as a compass, G1 users will be able to customise and configure the app in terms of sound effects, vibrations, sensitivities to their liking.

Check out this demo video put together by the HDBlog:

It seems like the sensitivity won’t be great for users who plan on detecting smaller metal objects, but if its just a case of missing keys,

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What a great way to spend some time with your kids on the beach, though it’s not necessarily been good weather here in the UK. If you’re elsewhere, you may benefit from this little DIY trick’s fun and perhaps make a little discovery! Watch the video for full instructions…

This simple and crude metal detector will work, not well, but it will get the job done, plus if the radio you use has an ear phone jack you can avoid annoying everyone around you.

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