Trinty Security Systems provides services in the following PA Counties: Chester, Adams, Franklin , Perry, Cumberland , Juniata, Mifflin, Snyder, Dauphin, Northumberland, Schuylkill, Berks, Lehigh, Montgomery , Huntingdon, Northampton, and in the following PA Cities: Lancaster, York, Harrisburg, Mechanicsburg, Camp Hill, Carlisle, Lebanon, Chambersburg, Millersburg, Selinsgrove, Reading, Macungie, Pottstown, Royersford, Wayne, Gettysburg, Hanover, Elizabethtown, Hershey, Allentown, Ephrata, West Chester, Collegeville, Quarryville, and Hazelton.