The SK-Ion has responsive, yet high operational stability for an extremely wide range of uses. The SK-Ion can be used in areas where early warning of trouble from superheated or flaming combustibles is expected.

The SK-Ion detector incorporates a single source dual chamber designed to respond quickly in to a broad range of fires.

Operation
The SK-Ion ionization smoke detector has two chambers: a sampling chamber, and a reference chamber. Smoke or invisible combustion gases can freely penetrate the sampling chamber, but the reference chamber is virtually closed to prevent easy entry. With both chambers ionized by a single radioactive source, a very small current flows.

Presence of visible smoke or invisible gases greatly influences the current flow in the sampling chamber, changing the voltage ratio between the two chambers. This difference is amplified inside the detector. After reaching the critical level, the detector triggers into alarm.

The SK-Ion includes two LEDs on each sensor which light to provide a local, visible sensor indication. The status LED lights continuously during an alarm.