Shop DSC Wired Heat Detectors at GeoArm Security. Browse DSC-Compatible System Sensor hardwired fixed-temperature, rate-of-rise, and dual-circuit heat detectors. These life safety sensors help protect residential or commercial properties by detecting dangerous temperatures or rapid increases in heat associated with a potential fire. DSC-Compatible security and fire systems support GeoArm 24/7 professional UL-listed central station monitoring or DIY self-monitoring with no long-term contract.