Seco-Larm E-931-S35RRQ Enforcer Indoor/Outdoor Wall Mounted Photoelectric Beam Sensor with 35 Foot Range For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage Dark ON operation, Adjustable sensing distance, Compact size 12~240VDC / 24~240VAC Operation, Current: Up to 40mA@12VDC Bracket and mountinghardware Included, Pre-wired 6ft (1.8m) cord Sensing Range: 0.5' to 35' (0.1 - 11m), Response Time: 10ms (Max)