Simplex 4050-81 Category : Simplex The only difference between this and the Simplex 4050-80 is that this runs off of 24 VDC rather than 120 VAC. Brand SimplexModel 4050-81Manufacturer SimplexType Alarm (Light)
Wheelock NS-24MCW-FW Category : WheelockThis is a two-wire, white Wheelock NS with a multi-candelas strobe.
Simplex 2099-9103 Category : SimplexThe terminal strip on the back of this pull is different than the one of my other Simplex 2099-9103.
