Driveway Alarms
Driveway Alarms are designed to let you know whenever someone or something is approaching your home, office or business and are a useful addition to any burglar alarm system already in place on the property itself. Whether you want it for your driveway, rear garden or a side entrance for the house, or to warn you of somone approaching a farmyard shop, a loading bay or an unmanned reception area these are the perfect answer and we have the type of alarm for just about any occasion with some working up to a distance of a mile, making them useful for large estates and farms etc.
In order to best determine range we have tested them in open ground using 'line of sight' but remember that each time a signal has to pass through an obstacle (wall or building for example) then the range will be decreased. As a guide, each time the signal passes through an obstacle you should allow a reduction of about 20 meters so, for example if the PIR is located the other side of an outbuilding, then the signal will have to pass through both walls of the outbuilding AND the wall of the house to reach the receiver unit reducing the effective range by up to 60 meters. Therefore it is imperative that you select the chosen location for the Motion Sensor & Receiver carefully bearing this in mind.
