It gives an early fire warning based on the constant smoke density. Smoke sensitivity is factory set according to European Standard EN54-7. The fire detector is controlled by a microprocessor. The FD 8030 works with a self-developed algorithm and signals the optical chamber contamination and compensation required to dust the chamber. This is done quickly due to easy disassembly and assembly of the cover of the body. And it provides a high level of protection against dust particles and insects entering and work under the strong airflow used in the construction of the optical chamber and the manufacture of the new technology screen. Supply voltage of FD 8030 Conventional Optical Smoke Detector: (10 /30) VDC Valid in Duty mode : 120 ?A Fire condition valid With Foundation type 8000 or 8000D : (8-25) mA Fire condition valid With Foundation type 8000R, 8000DR :(18-55) mA Terminals : Wires with cross section (0 ,8-2.5) mm 2 Diploma protection : IP 43 Operating temperature : Minus 10 o C 55 o C Relative humidity : 40 o (93 ± 3) C Accuracy : According to EN54-7 Mounting : Using 8000 series and bases Dimensions ( (including base) : Ø100, h 47 mm Housing material : ABS plastic, white Weight (including base): 0.100 kg Protective area : 15 million circle diameter, h 11m