Collapse Detection Device Introduced by Leader

On the 22nd December 2010, a routine operation took a dramatic turn for firefighters in Chicago, Illinois. Two of them died and 14 others were seriously injured after the collapse of a burning building.

To prevent such an accident, a simple and effective solution to control movements of a structure and alert rescue teams of an imminent risk of collapse: Designed by LEADER in collaboration with international experts in victim research techniques USAR (Urban Search and Rescue), LEADER Sentry provides additional security of intervention areas on which are engaged rescuers rescue teams, doctors and other persons or victims.

With a simple program setting, the inoffensive laser ray of the LEADER Sentry detects the slightest movement of a structure or mass that may endanger persons: unstable building, vehicle accident, landslide, rockfall or snow slab.

If the movement of the structure under surveillance exceeds the warning threshold chosen, a powerful siren and a flashing light are activated to warn of an impending collapse allowing rescuers to take security or evacuation measures.

Strengths of the product: • Simple and intuitive, • Two laser heads can be plugged on the same control box to be used simultaneously, • A laser beam with a range of 30 meters, • A 98 dB alarm and a red flashing beacon enable teams warning, • A quick and easy programming, • A sharp adjustment by increments from 5 to 100 mm to determine the acceptable maximum threshold of movement depending on the structure and context • A clear control screen showing movement in real time with the choice of measurement (meters or inches) • Possibility of multi-sources power to be operational in all situations (batteries taken 12/24 V, taken 110/220V). • An automatic switchover to AA batteries back up if the main power source fails, • A telescopic sight enables to precisely pinpoint the laser on the targeted area, • Two LEADER Sentry laser sensors can be linked simultaneously to monitor two different structures or two axis of movement of the same structure.


Major player in its market for several decades, LEADER designs and makes available to firefighting, rescue and security professionals; high-tech materials, robust and reliable in all circumstances, to protect and rescue people and properties. LEADER provides innovative products such as Nozzles and Monitors, PPV Fans, Life Detectors and Locators, Rescue and clearing equipment, Smoke generators, Flame simulators, Training doors, Thermal Imaging Cameras, Lighting

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