Vitronics manufactures Shatter Switch. Vitronics manufactures a wide range of products like displays and advertisements products, household products, security products etc. The Shatter Switch is used to sense the glass breaking sound. It is housed near the glass and its o/p is attached to an alarm circuit. This unit triggers the alarm whenever it receives the glass breaking sound. The alarm unit is suitable to connect to a telephone or light for dialing any preset number.