Shop Alula Wireless Heat Detectors at GeoArm Security. Discover Alula wireless heat detectors designed to provide dependable fire protection by detecting dangerous fixed-temperature and rapid rate-of-rise heat conditions in residential and commercial environments. Engineered for seamless integration with compatible Alula alarm control panels, these life safety sensors support GeoArm 24/7 professional UL-listed central station monitoring or DIY self-monitoring with no long-term contract, delivering reliable fire detection and enhanced property protection.