Kidde Fenwal 12-A27021-000-190 Heat Detector Unit (Detect-a-Fire) is a temperature-based fire detector intended for use in fire alarm systems. It activates at 190°F, delivering precise high-temperature sensing as part of the Detect-a-Fire family. The device is identified by model 12-A27021-000-190 within Kidde Fenwal's product lineup.
