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June 2007

Turnout Sensor Triggered By Temperature

To monitor critical temperatures, Viking Life-Saving Equipment has introduced the first National Fire Protection Association (NFPA) turnout gear with built-in Thermal Sensor Technology (TST).

Lightweight and flexible, this “intelligent” clothing alerts firefighters to critical temperatures that cause heat stress and burn, according to the manufacturer.

Integrated thermal sensors in the inner and outer layers of the coat monitor heat near the firefighter, as well as inside the coat close to the body. Sensors are attached via a conductive ribbon to LED displays on the sleeve and back of the left shoulder.

The shoulder LED display is visible to other firefighters, alerting them to potentially dangerous situations. The LED on the lower sleeve indicates elevated heat levels both inside and outside the turnout gear.

The display’s outer circle flashes slowly when external temperatures reach about 482 degrees Fahrenheit, and at 662 degrees Fahrenheit, it flashes rapidly, indicating the precious seconds between safety and injury. When the temperature inside the garment reaches about 122 degrees Fahrenheit, the long line on the display flashes slowly. At 156 degrees Fahrenheit, it flashes rapidly.

A small box in the inner liner of the coat contains a battery and a control chip calculates temperature and activates the LED displays. The sensors are protected by a flexible waterproof and heat resistant thermoplastic material.

Viking, based in Miami, Fla., said no maintenance is required beyond changing the battery. The TST gear, according to the company, can withstand at least 25 wash cycles.

For information call 800-845-4640 or go to www.viking-fire.com.