Shop Honeywell Home Wireless Door and Window Alarm Contacts at GeoArm Security. Browse 5800-Series (345 MHz) sensors and PROSiX encrypted contacts in standard, mini, slim-line, recessed, wide-gap, outdoor, universal transmitter, and shock-sensing designs. These intrusion sensors help protect residential or commercial properties by detecting when a monitored door or window is opened or disturbed. Honeywell Home security systems support GeoArm 24/7 professional UL-listed central station monitoring or DIY self-monitoring with no long-term contract.