When istralling Wireless Home Security System you may get tempted to buy a hidden camera. Make sure you know exactly what you'll be monitoring with it if you want it to be usefull and don't wan't to turn your home into a spy nest.
Fake garden and house ornaments, kitchen equipment, cans etc., all holding secret cameras are widely accesible on the internet. But, before using them, think first for which purpose you are going to use them.
Maby you are suspicious of your children's nanny: is she taking good care of your children? Maby lately money has been missing form cash register in your store? These may be good reasons for installation: to caught someone in action.
In order to prevent crime, visual cameras as a part of Wireless Home Security System are more advisable, because their function is to discourage villains from their acts.