A single sensor smoke detection device is either a photoelectric or ionization detection unit that responds when it sees smoke. Newer conventional smoke detectors offer environmental compensation with differentiating sensing that makes them immune to sensitivity drift, a common cause of false alarms. Devices are available for both hard-wired systems and analog technology.
Heat detectors spot temperature changes. These thermal sensors gather analog information and convert it to digital signals. The on-board microprocessor analyzes the signals and unwanted alarms are eliminated.
Each detector provides: