Edwards EST SIGA-IS Intelligent Ionization Detector – UL/ULC Listed 18/02 With an onboard shorting spring

With an onboard shorting spring

— SD-T18 18-inch sampling tube

5” H x 3-7/8” W x 2-3/16” D (127 mm x 98 mm x 56 mm

Sampling tubes rotate in 45-degree increments so that air-holes align

Edwards EST SIGA-IS Intelligent Ionization Detector – UL/ULC Listed 18/02 With an onboard shorting springESTs Signature Series Model SIGA IS Intelligent Ionization Smoke Detector gathers analog information from its smoke sensing element and converts it into digital signals. The detectors on board microprocessor measures and analyzes these signals. It compares the information to historical readings and time patterns to make an alarm decision. Digital filters remove signal patterns that are not typical of fires. Unwanted alarms are virtually eliminated.