Wireless motion activated alarms.

Wireless motion activated alarms are a great extra layer of protection these are very easy to install and can be used in several different applications many people use them in the driveway or walkway leading up to the front door, this is very useful if there are parts of the house where the doorbell can not be heard. They are also great for small business owners either in an office or a store placed by the entrance they can alert you to a new customer.