The WR-003A heat detector is a warm water type detector that operates when the ambient temperature exceeds a certain temperature. It is applied to places handling large quantities of firearms such as kitchens, boiler rooms, cooking rooms, underground warehouses, freezing rooms, and apartment buildings underground PIT humid places. When inverted by heat, ambient temperature rises by an electronic sensor, , The electronic sensor detects it and lights the indicator light of the detector to indicate the fire.

The sensor base is common with WR visual alarm device WR-001, indicator WR-002.

Specifications