Optical smoke detector that operates according to the principle of scattered light (Tyndall effect). It is indicated to detect fires in its first phase of smoke, before flames are formed or dangerous temperature increases occur. Formed by a dark camera complemented by a transmitter and a receiver that detect the presence of particles inside, governed by a microcontroller that is programmed from the central setting the operating parameters. Certificate according to the Construction Products Directive (DPC.) According to Standard EN 54-7: 2001. Supply voltage: 20-27 V. Consumption at rest: 3 mA. Consumption in alarm: 13 mA. Temperature range: 0º - 60º C. Humidity range: 10% - 90%. Housing material: ABS white. Alarm: fixed red. Dimensions: Ø105 mm. 76 mm with high base.