File:Alertronic High Powered Voice Siren.JPG

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:51, 4 April 2006		800 × 1,200 (645 KB)	commons>Rklawton	Alertronic High Powered Voice Siren, O'Fallon, Illinois, 2006. Robert Lawton (self) High powered voice and siren tone with 360 degree continuous coverage. Used for tornado warnings and other public emergencies.

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Camera manufacturer	Canon
Camera model	Canon EOS 20D
Exposure time	1/320 sec (0.003125)
F Number	f/6.3
ISO speed rating	100
Date and time of data generation	09:16, 4 April 2006
Lens focal length	300 mm
Orientation	Normal
Horizontal resolution	2,000 dpi
Vertical resolution	2,000 dpi
Software used	Digital Photo Professional
File change date and time	09:16, 4 April 2006
Y and C positioning	Centered
Exposure Program	Shutter priority
Exif version	2.21
Date and time of digitizing	09:16, 4 April 2006
APEX shutter speed	8.3219299316406
APEX aperture	5.3106994628906
APEX exposure bias	0
Flash	Flash did not fire, compulsory flash suppression
Color space	sRGB
Focal plane X resolution	3,959.3220338983
Focal plane Y resolution	3,959.3220338983
Focal plane resolution unit	inches
Custom image processing	Normal process
Exposure mode	Auto exposure
White balance	Auto white balance
Scene capture type	Standard