The Protech by Hirsch SDI-77XL2-EX-OUT PIRAMID EX is a purpose-built, explosion-proof outdoor motion detection sensor engineered for hazardous locations where flammable gases, vapors, combustible dusts, or easily ignitable fibers are present. Delivering a 100 ft. x 40 ft. (30 m x 12 m) volumetric detection pattern, this sensor features Protech's proprietary Stereo Doppler microwave technology with complete conformal coating for maximum reliability in the harshest industrial environments. Approved by the USAF for Protection Level 1 Nuclear & Below and certified for Class I Div. 1 & 2 (Groups C, D), Class II Div. 1 & 2 (Groups E, F, G), Class III, and NEMA 4, 7BCD, 9EFG classifications, it is the definitive choice for petroleum refineries, chemical plants, oil platforms, and other critical processing facilities. The outdoor-specific software compensates for heavy rain and provides enhanced immunity to birds and small animals, while the rugged IP66-rated explosion-proof housing withstands operating temperatures from -40°F to +158°F (-40°C to +70°C). Powered by a flexible 10.5 to 28 VDC input, this sensor integrates seamlessly into existing security infrastructure for uncompromising perimeter protection in the most demanding environments.