DIRECTIONAL SIRENS LTD
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FIRE & RESCUE SIRENS LTD
MANUFACTURER OF DIRECTIONAL SIRENS


TECHNICAL




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TECHNICAL INFORMATION

DIRECTIVITY
DETECTION LEVELS


RESEARCH

SIRENS EFFECTIVENESS REPORT
REFERENCES

LINKS


STANDARDS

TEST METHODS
PERFORMANCE REQUIREMENTS
RECOMMENDED PRACTICE


HEALTH AND SAFETY

CAUSES OF HEARING DAMAGE
MAXIMUM NOISE EXPOSURE LEVELS

CASE STUDY


PATENT

BACKGROUND

jez.brandon@directionalsirens.com
www.directionalsirens.com
Registered office:
DIRECTIONAL SIRENS Ltd 
21 Wyndcote Rd
Merseyside
L18 2EB


phone   +44 (0)151 234 9887        
mobile  +44 (0)796 426 9350