4-Wire Photoelectric Duct Smoke Detector

• Air velocity rating from 100' to 4000' per minute
• Patented interconnect ability for multi-fan shutdown (up to 10 air handlers)
• Patented telescopic sampling tube
• Patented cover tamper trouble signal
• 24VAC/DC or 120/240VAC operation
• High-Low voltage barrier
• Equipped with (2) DPDT Form C relay contacts
• Built-in reset button
• Outside mounting tabs
• Easy and quick mounting to round or rectangular ducts from 1' to 12'
• Easy to clean
• UL Recognized field-replaceable power and sensor boards
• Remote sounder and/or test station options
• Transparent cover for convenient visual inspection
• UL 268A Listed
• 3-Year warranty