The Inovonics EN1261HT high traffic four element motion detector solves the battery limitation problems of motion sensors in commercial applications through an intelligent sleep timer and superior battery technology. Designed to deliver four years of battery life when used in high traffic commercial environments (calculated at 200 activations per day), it features a detection range of 50 feet, superior interference immunity, and increased protection from common false alarm triggers such as vibration, static, lighting, and ambient temperature changes.