The LED illuminated warning boards type TOL are intended for use as optical and acoustic warning and information elements in stationary systems for the measurement or detection of gases and flammable vapours, outside potentially explosive atmospheres.
The PSZ-4D alarm device is intended for optical and acoustic signalling of alarm conditions occurring at low-voltage outputs of control devices. The alarm device can be installed both indoors and outdoors. It cannot be used in areas defined as explosion hazard zones. The acoustic signal source is a piezo transducer generating a pulsed and modulated sound of high volume. The transducer's control system allows for two-stage intensity adjustment. The optical signal source is provided by ultra-high…
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