New and complete (Hardware pack is sealed) in open box Features • Photoelectric, low-flow technology • An air velocity rating from 100 feet per minute to 4,000 feet per minute (.5 meters per second to 20.32 meters per second) • Patented interconnectability for multi-fan shutdown • Two DPDT Form-C relay contacts • 24 VAC/DC or 120/240 VAC • Versatile mounting options • Outside mounting tabs • A patented telescopic sampling tube • Modular construction • A patented cover-tamper trouble signal •
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