The WattStopper WT-600 Ultrasonic Occupancy Sensor is a reliable and efficient device for monitoring occupancy in a space. With a detection range of up to 600 feet and a frequency of 32 kHz, this sensor provides accurate and timely information for home surveillance systems. The wired 24VDC connectivity ensures seamless integration with existing systems, while the trusted Legrand brand ensures high quality and performance. Perfect for enhancing security and comfort in any home, the WattStopper WT-600 Ultrasonic Occupancy Sensor is a valuable addition to any smart home setup.