The transmitter of the automatic fire detection facility, the alarm box, and the repeater are installed on the indoor fire extinguisher box in the general building. If there is no indoor fire extinguisher box in the place where the transmitter and the alarm box should be installed, Seo, and a repeater.

The PCB-T type is made of red, and the PCB-S type is made of hairline stainless steel with a luxurious apperarance.