Zhejiang Zhongwei
China manufacturer of office components, caster, arm, base, controller, shower, warning light and road block light.
http://www.zhongwei.com

Nudibranchs
Light-hearted look at these organisms and their defence mechanisms, their bright colours as warning signals or camouflage and the chemicals they emit.
http://www.sio.ucsd.edu/voyager/nudibranch/

Pull To The Right
PullToTheRight.com is your one-stop source for emergency lights and emergency vehicle euipment. Lightbars, strobe kits, grill lights, sirens, dash lights, traffic directors, push bumpers, and much more. From Federal Agencies to Volunteers, we are here to help!
http://www.pulltotheright.com/

Wikipedia: Miranda Warning
Provides encyclopedic background information and common misconceptions regarding this device for warning people that they do not have to incriminate themselves.
http://en.wikipedia.org/wiki/Miranda_Warning

Boddingtons Ltd
Boddingtons manufacture extruded plastic mesh & nets, barrier tapes, underground warning tapes, detectable tapes, grass protection mesh, turf reinforcement mesh & barrier fencing mesh
http://www.boddingtons-ltd.com/

Ever Step Development Limited
Manufacturer and exporter of solar power products including solar modules, and multi-purpose warning light.
http://www.everstep.com.hk/

P. Berghaus GmbH
Willkommen bei der Peter Berghaus GmbH. Wir sind Ihr kompetenter Ansprechpartner für Signalbau, Signalanlagen, Ampelanlagen, Stahlschutzwände, Baustellenabsicherung, Lauflichtanlagen, Verkehrsabsicherung, Schilder, Lichtzeichenanlagen, Signal-Leuchten, Signal-Lampen, Pylone, Kegel, Leitkegel, LZA, Lichtsignalanlagen, Warntafeln, Absperrtafeln, Leitwände, Rundumleuchten, Rundumkennleuchten, Blaulicht, Gelblicht, Verkehrsschilder , Verkehrszeichen, Leuchtpfeile, Baken und Fußplatten
http://www.berghaus-signalbau.de/

Warning Systems (UK) Limited
Warning Systems UK Ltd - The UK Market leader in Public Safety
http://www.warningsystemsgb.co.uk

Alert Systems
Flood Warning Homepage, with information on technologies, organizations, and vendors
http://www.alertsystems.org/

Sense Technologies, Inc
ScopeOut® is an after-market safety mirror system for cars, light trucks and SUVs. The ScopeOut® system is mounted externally, or internally, depending on the model, and allows a driver to view pedestrian and vehicle traffic from both directions while backing out of a parking space or from a driveway. The customer has a substantially wider view of the rear sides of the vehicle, allowing for greater safety for drivers and pedestrians alike.
http://www.sensetech.com/