page_title: American Signal Corporation
section_title: Early production siren models
hierarchical_section_title: American Signal Corporation / Early production siren models
caption_attribution_description: English: The Small Tube is the air intake the "fluting" arroud the bottom of the chopper is the air exit Credits Brent Bwillcox
context_page_description: American Signal Corporation is an outdoor warning siren and mass notification company in America. ASC was founded in 1942 as Alerting Communicators of America.
context_section_description: Original siren from early production (1940's-1950's):
  Mobil Directo (Biersach & Niedermeyer brand)
  Sirens from the 1960s until the 1980s:
  ACA Allertor 125
  ACA Hurricane 130
  ACA Hurricane 130 MKII
  ACA Screamer Series. (Ranging from 2 HP to 10 HP)
  ACA Banshee 110
  ACA Banshee 115
  ACA Sentry 95
  ACA Cyclone 125
  ACA Cyclone 120
  Sirens in production during the 1980s until the early 1990s:
  ACA P-10
  ACA P-15
  ACA P-20
  ACA P-50
  ACA Howler
  ACA Alertronic 6000
  ACA Alertronic 4000
caption: Head Shot of A P-50 The Small Tube is the air intake the "fluting" around the bottom of the chopper is the air exit
exif: {"Image ImageDescription": "OLYMPUS DIGITAL CAMERA", "Image Make": "OLYMPUS OPTICAL CO.,LTD", "Image Model": "C730UZ", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "v556u-78", "Image DateTime": "2003:11:25 14:34:39", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "284", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "4084", "Thumbnail JPEGInterchangeFormatLength": "2737", "EXIF ExposureTime": "1/500", "EXIF FNumber": "4", "EXIF ExposureProgram": "Program Creative", "EXIF ISOSpeedRatings": "64", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2003:11:25 14:34:39", "EXIF DateTimeDigitized": "2003:11:25 14:34:39", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "2", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "18/5", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "263/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2048", "EXIF ExifImageLength": "1536", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "1002", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "0", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "None", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal"}