RF Safety Caution signs from RFSigns.com indicate a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. The signs can be used to alert against unsafe practices that may cause property damage. The manufacturer offers two types of caution signs: one that warns of potential emissions above the occupational exposure limit and one that warns of hazardous emissions on the tower. The signs, which measure 10 inches by 14 inches, are made from 0.040 aluminum painted with UV-resistant inks. The signs follow the ANSI specifications for hazard communications and are available in a bilingual (English/Spanish) version. www.rfsigns.com