The Salwico EV-P operates on the principle of optical light scattering, designed to provide early warning for the presence of smoke. This detector, part number 040020, is part of the Salwico range of smoke detection systems and is compatible with various Salwico systems as well as OEM systems. It features an optical chamber that enhances its sensitivity to smoke while reducing dust ingress through a fine pitch net design. The detector offers 360° visibility of the red alarm indication through its OMNIVIEW LED indicator, ensuring clear alerts in any environment. It supports analogue addressability, allowing for precise detection and control, with addresses set using a special programming tool. The EV-P operates within a nominal voltage range of 24 V DC and supports a wider operating voltage range of 20–38 V DC, with an operating current of 0.2 mA and an alarm current of 5 mA. The detector is rated for IP44 protection when used with specific base components, making it suitable for harsh environments. Weighing 120 g without the base, it is constructed from PC/ABS material and is white in color. It is equipped with an output for remote indication and is certified according to the standard 2531/yyyy, with yyyy indicating the year of production.