"FOR LIGHTING & SIGNAL SYSTEMS WHISTLE
MAKER:ZÖLLNER GMBH
TYPE:ZET-HORN 131 AC
SN NO. BSH/4615/60128
BUILDING YEAR 2009" "SIGNAL SAMPLING PCB
10061012 / BZ5-HOH-64ZK / 2K1001 " Z?LLNER GMBH .ZET-HORN131AC .JH7. 623. 414