Specifications Escalator parts running indicator 1.Stainless steel or arylic finish 2.Static or rotating arrow indication. Features: -superior function of water-proof. -convenient installation -pure green led, excellent uniformity of illumination. -two display status can be achieved by connection: Red"-" indicates impassable , green "?"indicates passable. Technical specifications: Working voltage:24vac/dc (+10%, -20%) Working current:110ma Cylinder diameter:110mm Cylinder height :177mm Working temperature:-25oc-+55oc Storage temperature:-30oc-+70oc