قطر سیم داخلی 0.74mm
قطر شیلد مسی 128*0.12
The LF-SD-40 Battery Operated Smoke Detector uses a specialized smoke chamber design, which could sense the presence of smoke particles produced by fast combustion or slow smoldering fire. The detector can effectively sense both white smoke and black smoke with virtually no false alarms.
The Maxitone sounder is an ideal alternative to fire bells and for external use. It is housed in an attractive horn comprises of flame retardant ABS. Eight selectable tones and volume control are featured to meet most requirements. The Maxitone is also available with transparent polycarbonate front which will provide both visual and audible alarm.