Hazavoid is the designer and manufacturer of the worlds most dependable wireless alert systems. With an Australian patented design along with US FCC approval Hazavoid has a range of siren, beacon and signage options to create fully customisable wireless emergency alert systems for all applications. Our systems are easier to install, easier to hear, faster to activate. Talk to us about maximising YOUR safety with our range. Time Matters, Fast Activation in Panic Situations.