ArrowBoard\Manuals\ABManCov.p65 10/14/2002SILENT SENTINEL SOLAR POWERED ADVANCE WARNING ARROW PANEL OPERATION & MAINTENANCE MANUAL (P/N 550-025-100)Harness the Power of the Sun SOLAR TECHNOLOGY, INC.7620 Cetronia Road, Allentown, PA 18106 Phone: 610-391-8600 Fax: 610-391-8601 ...