Shop Honeywell Home Wired Interface Modules at GeoArm Security. Browse wired and hardwired System Sensor interface modules in 2-wire and 4-wire configurations for compatible smoke and carbon monoxide detectors. These modules connect combination life-safety detectors with compatible alarm control panels for coordinated smoke and CO signal reporting. Honeywell Home wired interface modules support GeoArm 24/7 professional UL-listed central station monitoring or DIY self-monitoring with no long-term contract.