In the pictures are the things you will need
Schematic is on the first instruction page
For all those people writing really nice comments with things which could be improved on the pyro detonator, I improved it the way you asked so here is the link to the pyro detonator 2:
Step 1: Connect up the upper end of the circuit and the lower end
Now connect up the lower end of the circuit one end goes to the 10 meter wire and the other into the box, then to the battery, you can also include a main switch.
There is a schematic drawing
Step 2: Finalisation
Just turn it on and press the FIRE button.