The Honeywell (formerly Ademco) 5800 series of wireless door, window, and space protection provides the most reliable, convenient and cost effective solutions for security protection. These devices are powerful and versatile enough to help solve even the toughest, most labor intensive installations. With demonstrated outdoor range of over a mile and an indoor range of 150 feet (within a standard frame home), the 5800 series has the best performance of any transmitters available today.