Signal 88 Security of Middle Georgia Share: Investigation Services Signal 88 Security of Middle Georgia Visit Website 108 Tuscany Court Mcdonough, GA 30252 (678) 814-5151 Facebook Hours: 9:00 a.m. - 9:00 p.m. About Map About We are a global security company that provide customized security solutions for residential, commercial, retail, and institutional customers while encompassing our ''peace of mind'' philosophy. What's Nearby? Distance: 5 10 15 20 25 50 mi.