The New and Improved Moat

Tattletale Fencing

Leaky Coax

Mircrowave: Oldie but Goodie

Infrared and Vibration Detection

Cameras Work Where Others Don’t

Dave Shelton is president of D/A Central Inc., a 47-year-old systems integration company serving Michigan and the northern Midwest. D/A Central is also a member of SecurityNet Inc., an international network of systems integrators closely interacting to serve national-level clientele with local attentiveness at every location.