How To Make A Theft Alarm Model

by | Nov 20, 2021 | Physics, Science

Home » DIY » How To Make A Theft Alarm Model


This tutorial will show how to make a theft alarm model for a science exhibition by using readily available material at home.

The theft alarm project is an easy science exhibition idea for students. A door or theft alarm works by using a sensor and a magnet. The homemade alarm can take intruders or burglars by surprise.


To make this theft alarm model, we need;


  • Cardboard
  • Alarm
  • Pen cap
  • Clothes clip
  • Wire
  • Hot glue gun
  • Scissor

Steps To Make A Theft Alarm Model

Step 1: First, take a cloth clip and coil wire in it.

wire in it 1

wire in it 2

Step 2: Now connect the cloth clip wire to the alarm wire.

alarm wire

Step 3: Now fix the pen cap between the clip ( as shown in the picture).

between the clip

Step 4: Now, to test the alarm, when you remove the cap in between the clip, the alarm starts ringing!

start ringing

Step 5: You can fix this alarm at the door and connect the cap with the wire to another corner. And when anyone enters, the cap removes itself; a notice alarm starts ringing!

Door Alarm Or Theft Alarm Working Model For Science Exhibition


A door alarm helps both human life and property when intruders come in. With this working model of door alarm, students will know the values and concept of working of alarm and notice how it can be made at home by material readily available.

This theft alarm science model can also be presented at their science exhibition.



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