A detonator is a device used to initiate an explosive reaction. It typically contains a small amount of explosive material that, when triggered, creates a shock wave or flame to ignite a larger explosive charge. Detonators are commonly used in construction, mining, and military applications to safely control explosions. There are various types of detonators, including electric and non-electric versions. Electric detonators use an electrical current to activate the explosive, while non-electric detonators rely on shock waves from a primary explosive. Both types are essential for ensuring precise timing and safety in explosive operations, such as those involving dynamite or blasting caps.