Simplex 4905-9993 White Cover for V/O StrobeThe Simplex 4905 9993 White Cover for V O Strobe is marked FIRE.

Electronic monitoring of wiring supervision means you can T-tap audio and IDNAC wiring for Class B wiring

Upon loss of voltage

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power limited rating of 2 A at 30 VDC

you must install a Class A adapter option card that mounts onto the NAC option card (Refer to the 4009-9808 Class A Adapter Option Card Installation Instructions [574-326])

Mounts in a 4" (102 mm) square box

Features operation that allows On until silenced and On until reset on the same two-wire pair

a power distribution interface module (PDI)

The Simplex 4903-9196 Speaker Strobe (White) is a Round Ceiling Mount Speaker with TrueAlert Non-Addressable Strobe

Optional break glass rod included

The Silent Knight SK-RELAY-6 Relay Control Module is a crucial part of fire alarm systems

The box must have a minimum depth of 21/8 inches