Electric detonators detonates normally on application of electric firing current.The detonator is fitted with a fusehead to which two insulated leg wires of diameter 0.5 mm are welded. The wires pass through a moulded plug which is crimped into the open end of a copper or G.I wire detonator tube. The colour of the insulated wires are usually white and red or blue, and bared at the ends.

A Combidet is a non-electric initiation system which is designed for use in mines. The unit consists of
both out-hole and an in-hole delay detonator. Assembles with clear or brilliant yellow or pink shock
Tube. A length of shocktube, which incorporates in-hole delay detonator that is crimped at one end and a short delay out-hole detonator crimped onto the other end. The outhole detonator is located in a specially designed plastic connector body.