Simplex 4906-9111 Strobe VO White Hi-Cd Non-Addressable 27/02 The Simplex 2975-9206 is an

The Simplex 2975-9206 is an ivory finish 6-gang Back Box for surface mounting

25 to 90 Deg

and cut to size to fit the duct

they are supervised for three or four state operation

and the microphone

Simplex 4906-9111 Strobe VO White Hi-Cd Non-Addressable 27/02 The Simplex 2975-9206 is anTrueAlert multi candela high intensity appliances provide convenient installation to standard electrical boxes. They are both impact and vandal resistant and provide a convenient strobe intensity selection. Since each model can be selected for strobe intensity output, onsite model inventory is minimized and changes encountered during construction can be easily accommodated.