How to Make a Personal Alarm for a House

Place the 1.5-volt battery on the left side of the 4-inch by 12-inch piece of wood and secure it with the electrical tape.

Place the 1.5-volt buzzer on the right side of the 4-inch by 12-inch piece of wood. Secure the buzzer to the wood with a piece of electrical tape.

Cut two 12-inch lengths of electrical wire with the utility knife. Remove two inches of the insulation from one end of both wires, using wire strippers or a utility knife. Remove a half-inch from the other end of the wires.

Wrap the two-inch uninsulated end of one of the wires around the top tip of the wooden clothespin. Wrap the two-inch uninsulated end of the other wire around the bottom tip of the wooden clothespin. This will be the switch for the alarm.

Open the wooden clothes pin and place a small piece of cardboard between the tip.

Connect the half-inch end of one of the wires to one end of the battery. Place a piece of electrical tape to keep the wire attached to the battery.

Twist together the half-inch end of the other wire to the one of the electrical wires on the mini-buzzer. Place a piece of electrical tape over the twisted wires.

Connect the other electrical wire from the buzzer to the other end of the battery. Attach the wire with the electrical tape.

Open the wooden clothespin and remove the cardboard. Close the clothespin to test the alarm. Listen for the the buzzer to make a sound. Place the piece of cardboard back into the clothespin.

Apply a small amount of wood glue to the bottom of the wooden clothespin. Place the clothespin on an edge of the 4-inch by 12-inch piece of wood. The glue will dry in about 12 hours.

Attach a piece of string to the cardboard with a piece of duct tape. Secure the other piece of string to the front door of your house.

Place your personal alarm next to the door and secure it to the wall with screws using the power drill.