Magnetic Contact: 

If you want to detect the closing & opening of door/window then magnetic sensors are required. If someone tries to open the door/cut the wire then it creates alarm in armed condition.

Shutter Contact:

If you want to detect the closing & opening of shutter, then shutter contact are required. It is a pair of sensors, out of which one part is fitted with the shutter & other one in the ground. When gap create between the two sensors it raises alarm in armed mode.

Panic Switch:

It is 24 hours emergency switch which can be pressed in any mode to activate the hooter in case of emergency & medical help etc.

P.I.R.

It detects motion or movements. It is suitable for shop and showrooms where there is no movements in armed condition.

Hooter:

Different models available depends upon your requirements. Shape and sound of the hooter is different which varies from model to model.