The present invention improves upon the traditional system model and paradigm by providing {HEAD ~ a security system} with {TAIL ~ reliability} exceeding that of existing wireless security systems, at lower cost than either professionally installed hardwired systems or wireless security systems 
with
The present invention improves upon the traditional system model and paradigm by providing { HEAD ~ a security system } with { TAIL ~ reliability } exceeding that of existing wireless security systems , at lower cost than either professionally installed hardwired systems or wireless security systems
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH