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Overview
Specifications
Documents
Product Overview
The units are comprised of an LED light source and a silicon photodiode receiving element. In a normal standby condition, the receiving element receives no light from a pulsing light source. In the event of fire, smoke enters the detector and light is reflected from the smoke particles to the receiving element. The light received is converted to an electronic signal these signals are processed in the comparator, and when two consecutive signals exceeding the basic level are received within a specific period of time, the time delay circuit triggers the SCR switch to activate the alarm signal. The status LED lights continuously during the alarm period.
Specifications
ADI Part Number NA-FW2S Brand Name Napco Security Technologies Manufacturer Napco Security Technologies Manufacturer Part Number FW-2S Package Length 6.500000000 Product Model FW-2S Product Name FW-2S NAPCO 2-Wire Photoelectric Smoke Detector w/Built In Sounder Product Type Wired
Connectivity Technology Wireless Detectable Medium Smoke Sensing Technology Photoelectric
UL Listed Yes
Input Voltage 35V DC, 8V DC
Certifications UL 864, UL 985 Environmental Certification UL Environmentally Friendly Yes