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- ...rt dual tone, and 9 port single tone. Like other sirens in California's CD systems, it came standard with a controller, maintenance basket, and large metal po ...Directo]]. Due to being a small company, they never got to sell far beyond California. Along with sirens, R.J. Zievers, Inc also sold wind machines and other hea ...3 KB (516 words) - 01:05, 28 April 2023
- |location = South Orange County/North San Diego County, California. ...down San Onofre Nuclear Generating Station located just past San Clemente, California. There were 24 [[WPS-2800 series|WPS-2810]] , and 26 [[WPS-2800 series|WPS- ...6 KB (1,003 words) - 01:13, 15 September 2023
- |company= Southern California Edison ...ow tone supercharged electromechanical siren designed in house by Southern California Edison for use within the 10 Mile Emergency Planning Zone (EPZ) for the ''' ...9 KB (1,459 words) - 17:46, 7 April 2024