| 摘要 |
A fire detector unit is provided comprising a fire detector, and a detachable breakaway detector cover that is attachable to the fire detector and has openings therein. The detector cover may be attached in such a way that it completely detaches from the fire detector when pulled away from it. The attachment means may be a magnet or a resilient mechanical connection. The fire detector unit may further comprise a switch for detecting whether or not the detector cover is mounted to the fire detector. The switch may be a magnetic switch. The fire detector may comprise a smoke detector, a heat detector, a flame detector, or a gas detector. The fire detector unit is particularly suited for use in prisons as the breakaway detector cover prevents the unit from being used as a ligature point in a suicide attempt. |
