The Hekatron ORM 130A is replaced by the Hekatron SCD-563 Smoke Detector + USB-501-1 Detector Base.
Hekatron ORM-130A recognizes early stage smouldering fires and open flames with smoke development. It operates on the principle of a dispersion photometer. The light transmitter and the light receiver are arranged in the sensor chamber so that the beam emitted by the transmitter cannot directly enter the receiver. When suspended particles enter the chamber, the light beam is dispersed and light enters the receiver.
- 143A standard base dry space