System Sensor SWK 04/03 The Siemens FDO421 is an

The Siemens FDO421 is an intelligent

actuating switches when the valve is fully open

Station reset requires the use of a key to reset the manual station lever and deactivate the alarm switch

Connect up to 16 modules per system

— IFP-50 Intelligent Fire Panel

System Sensor SWK 04/03 The Siemens FDO421 is anSpectrAlert Advance offers the broadest line of outdoor horns, strobes, and horn strobes in the industry. With white or red plastic housings, wall or ceiling mounting options, and plain or FIRE printed devices, SpectrAlert Advance can meet virtually any application requirement, including indoor, outdoor, wet, and dry applications in temperatures from 40F to 151F. Like the entire SpectrAlert Advance line, outdoor horns, strobes, and horn strobes for