The Wasp WLS 8400ER DuraLine features an industrial Duraline coating and a long distance laser and will rise to the challenge in even the most strenuous work environments. The WLS 8400ER DuraLine will instantly scan barcodes at any distance from 4 inches to 45 feet. What's more, it is built to survive multiple drops from 6.5 feet and it consitently outperforms the competition in specialized tumble tests.