PULLMAN – Emergency sirens will be blaring at several selected times 9 a.m.- 5 p.m. Saturday, Sept. 29, on the WSU Pullman campus as tests and adjustments are made to the university’s new outdoor campus siren/public speaker system.

The siren manufacturer Acoustic Technology Inc. Systems is expected to run two to three tests between 9 a.m. and 9:45 a.m., then another series of tests beginning at 11:30 a.m. and a third set at 2:30 p.m. These test will include 20 listeners distributed through out campus who will give feedback on the quality of voice messages.

No tests will be run 9:45-11:15 a.m. or 3:45-4 p.m.

The speakers were installed in August on five building rooftops at Webster, Carpenter, Holland Library, Plant Bioscience 1 and Central Stores.

The siren/speakers provide the Pullman campus with an alert system that can reach campuswide in minutes, independent of the internet or phones. Each siren is rated at 115 decibels, according to Facilities Operations officials. By comparison, a jet engine revving 100 meters away is rated at 110-140 dB.

The system also enables university officials to make live announcements through the speakers or activate one of a series of preprogrammed announcements.

For additional information, contact Chris Tapfer, WSU emergency management coordinator, at 335-7471.