The kit must be composed of: 3 general purpose pushbutton, 3 bell pushbutton, 3 door opener pushbutton, 3 switches, 2 change-over switches, 2 reversing switches, 1 mains socket, 3 bells, 1 buzzer, 2 fuse holders complete with fuses, 1 stairs light timing relay, 1 pulse relay, 2 lamp holders complete with incandescent lamps, 1 fluorescent lamp complete with lamp holder, starter and choke, 1 electric lock, 1 external pushbutton panel with 3 pushbutton, 1 signaling panel with 4 displays, 3 wall-type entry phones complete with buzzer and 3 pushbutton, 1 power supply for the entry phone, 1 transformer mains/2x12V, 1 piece of DIN section, 1 set of screws to fix the components, 2 containers.

Possibile exercises to be demonstrated by the kit: 

• Single-point controlled lighting system 
• Single-point controlled lighting system with socket
• Switch-controlled two-lamps lighting system
• Two-point controlled lighting system
• Three-point controlled lighting system
• Four-point controlled lighting system
• Circuit breaking-relay controlled lighting system
• Switching-relay controlled lighting system
• Timed-relay controlled lighting system
• Hot cathode fluorescent lamp system
• Signaling installations 
• Single-control signaling system
• Reciprocal control signaling system
• Display indicator and reset pushbutton signaling system
• Ringing system with doors and main entrance control.
• Electric lock bell system
• Two reciprocal call house-phone at short distance.
• Two reciprocal call house-phone at long distance 
• Coupled two house-phone system
• Main house-phone and two shunted house-phones system