Smoke detector, photo-electronic, in accordance with EN 54-7. Operating voltage: 9-24V DC, for connection to a control panel in accordance with EN 54 and also to RZ03 / RZ04. With integrated siren in accordance with EN 14604: 85 dB(A)/3m. 12-24V DC control of the siren by the control panel. Alarm signal through increased current consumption or optocoupler circuit to ground. LED signals alarm storage until a manual reset is carried out. Automatic self-test, manual test using test aerosol. Includes separate connection base for convenient installation. Parallel connection to the control panel via shielded fire alarm cable with at least 4 wires. Operating temperature: -10°C to 55°C. Dimensions: D 118 x 42mm.