Used to detect a fire risk in the interior of residential or commercial buildings. It comprises of a siren that indicates a fire alarm, both from the entire detector and from another fire detector in the system.

The JA-111ST consists of two independent detectors – an optical smoke detector and a heat detector. The optical smoke detector works on the principle of scattered light. It is very sensitive to large dust particles which are present in dense smoke. It is less sensitive to smaller particles generated by the combustion of liquids such as alcohol. That is why the fire detector also contains a built-in heat detector which has a slower reaction but is much better at detecting fire which generates only a small amount of smoke.

The detector communicates wirelessly and it is supplied by batteries (3x 1.5 V AA).

If the detector is operated without being assigned to a control panel or if communication with the control panel has been lost, it works in an autonomous mode (EN 14604).

The detector indicates a dangerous situation optically with an integrated light and a siren. It is able to acoustically report:

• a fire alarm detected by the detector itself
• a fire alarm from the system (alarm triggered by another fire detector)
• another type of alarm (e.g. an intruder alarm)
• for alarms reported by the system, sections can be set for which the alarm will be indicated

The product contains two separate detectors – an optical smoke detector and a temperature detector. The optical smoke detector uses the diffused light principle. It is very sensitive to particles that are present in thick smoke. It is less sensitive to small particles produced by the burning of liquids such as e.g. alcohol. Therefore, a heat detector is integrated, which responds better to a fire developing heat quickly with a small amount of smoke.

The detector is not designed for installation in industrial environments.

You can find the product by unique code: JA-111ST-A.