This A3 ice warning sign made from semi rigid plastic activates spontaneously during cold weather. The secret lies in the special thermochromic ink technology which causes a blue ‘Warning’ message to appear when the ambient temperature drops below 5°C. The UV resistant laminate protects the sign and component inks from damage by the weather for up to 12 months.

Size (A3): 297 mm (d) × 420 (w)