Detonators

Detonators are small explosive blasting caps which were placed on rails to warn the engines of danger ahead when they run over them. During heavy fog, the duty of placing them is usually handled by Cyril the Fogman. According to merchandise, the caps are produced by the Brendam Bay Blasting Cap Company.

Description
All detonators seen throughout the show are some form of red dome shape, with a metal clamp attached underneath to fix it to the rails. Some have grey bases, a brown button on top, and markings written out in white with a thick, matt grey clamp. Others simply have a white cross on top with a thin, shiny clamp, or no symbols at all with a curved clamp.

Appearances
Railway Series=

The Railway Series

 * Edward the Blue Engine - Cows
 * The Eight Famous Engines - Double Header
 * -|Television Series=

Thomas & Friends

 * Series 5 - Snow
 * Series 6 - The Fogman
 * Series 22 - Samson and the Fireworks

Merchandise

 * Wooden Railway
 * Take-Along