How much area does the MouseBlocker unit cover.

The MouseBlocker units are designed to protect the space where they are located.  The units emit very powerful sounds and vibrations so depending on the space depends how the sounds will reflect.  If the unit is placed in an engine compartment you will find the sounds reflect and circulate around that space very well and very little of the sounds will come out.  If the unit is placed on a tractor or motorcycle in a shed you will find the sounds will start circulating around the shed as the bike or tractor will not contain the sounds.  This will allow the units to effectively protect more than one thing sharing that space.