DHI-ARD311-W Wireless Door/Window Contact

The DHI-ARD311-W Wireless Door/Window Contact provides reliable security monitoring for doors and windows in residential or commercial settings. Featuring bi-directional communication, it ensures robust signal transmission up to 150 meters in open spaces. The sensor offers a motion detection range of 25-40mm, activating upon door or window movement. Designed for longevity, it boasts a battery life of up to 3 years and includes a tamper switch for added security. Installation options include both screw and glue mounting on ABS plastic surfaces. Certified with CE, FCC, and MABISZ standards, it guarantees compliance with international safety and quality regulations.