LAS VEGAS, Nev. (June 4, 2008) – SimplexGrinnell is taking a step forward in fire alarm system commissioning with the introduction of two new products – a contractor diagnostic instrument that can ...

Tyco International Ltd., maker of ADT-brand alarm systems, agreed to buy closely held Simplex Time Recorder Co. for $1.15 billion to bolster its fire- and security-systems businesses. Westminster, ...