Mallory Sonalerts ALARM; 30 TO 120; 68 DB(A) (MIN.) @ 30 VAC/VDC; PANEL MOUNT; 4500 HZ + 500 HZ; Mallory Sonalerts ALARM; 30 TO 120; 68 DB(A) (MIN.) @ 30 VAC/VDC; PANEL MOUNT; 4500 HZ + 500 HZ;, MPN: SC110HR GBP 34.60 1