Simplex 4098-9402 135F fixed temp. and rate of rise detection. Brand SimplexModel 4098-9402Manufacturer UnknownType Heat Detector
Simplex 2098-9806 Category : SimplexThere is no difference between this unit and my other Simplex 2098-9806.
Wheelock AH-24 Category : WheelockThis is a horn only white Wheelock AS. The bulge where the strobe would be on a Horn/Strobe looks pretty...
Notifier 34-24 Category : NotifierThis is basically just a Wheelock horn with a Notifer sticker slapped onto it.