The Mier DA-051-100 sensor features a 100-foot direct burial cable, designed for use with DA-500, DA-503, and DA-504 models. Built with a durable PVC casing, it monitors a 10-foot radius and can be placed up to 5,000 feet from the master control unit. Multiple sensors can be added, up to three, without losing sensitivity, perfect for monitoring vehicle movement across different areas. Additional cable lengths are also available. Enhance your security setup today with this reliable and versatile sensor.