Linear smoke detector for the protection of premises of large area or length. Distinctive features of this modification: two-position version (receiver + transmitter); working distance from 8 to 100 metres; wide range of angles of adjustment. Receiver and transmitter have the same design and are made in the form of a rectangular plastic housing with a board with radio elements and optical system installed inside it.
Along the inner surface of the case there is an electric screen covering both the board with radio elements and the optical system. The optical system is protected against penetration of insects and dust, and the protection is provided against penetration both from outside the enclosure and from its internal space. The optical system consists of two optical units isolated from each other, i.e.
it has a two-lens (two-channel) design.
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