McLean is a global leader in cooling telecommunications, outside plant (OSP) and other outdoor datacom enclosures. From small E911 and backhaul cabinets to large enclosures packed with batteries, power sources, amplifiers and radio equipment, McLean has the cooling capacity and weathertight design for your system. Every outdoor air conditioner is functionally tested before it ships. Plus, our worldwide network of service technicians is available 24/7 to keep your electronics systems running.