He used a metal detector to search for treasure on the beach.

He searched for metal using a new detector.

I will work using this laptop.

We are planning to go to the beach this weekend.

He searched all over the room and found his lost wallet.

He used a radar to search for the ship.

This metal is very hard.

That detection device is very useful for finding landmines.

He developed a device to detect earthquakes.

He is my best friend.