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Sales, Service and Warehouses in twenty-five locations throughout the United States, Canada, Mexico and Europe support the three facilities in Chester, Charlestown and Coventry, England. The acknowledged leader in the industry, Whelen® strives to fill the need for innovative safety warning systems with a large engineering staff backed by a state-of-the-art environmental testing laboratory. The pride and commitment of its work force, who's average employment longevity is 22 years, is rewarded by sharing the Company's benefits as share holders in the tradition established by the founding Whelen's fifty-six years ago.