Protect your family and home with the Skylink Motion Alert Sensor. This long-range sensor can be added to any of the Skylink Household Alert Kits to expand security coverage around a home or business. The sensor can be used indoors and outdoors and has an operating range of 800 feet. The unit employs the latest rolling code technology for enhanced security protection and false alarm prevention. | Skylink Motion Sensor (HA-434TL)