SYSTEM SENSOR SRK-R SF 16/12 The Simplex 59AO-WRS Indoor wall

The Simplex 59AO-WRS Indoor wall mounted TrueAlert ES addressable A/O horn appliance

Two alarm inputs

SB-I/O surface-mount backboxes are for use with Silent Knight PS-SA and PS-DA pull stations

Each module has its own address

20VA power output

SYSTEM SENSOR SRK-R SF 16/12 The Simplex 59AO-WRS Indoor wallSpectrAlert 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.