Silent Knight SD505-T2

Silent Knight SD505-T2The Model SD505 DUCT Duct Smoke Detector is a heavy duty detector housing with the SD505 APS Analog Photoelectric Smoke Sensor pre installed. It provides early detection of smoke and products of combustion present in air moving through HVAC ducts in Commercial and Industrial applications. The SD505 DUCT is in a heavy duty gray steel back box with a clear cover. It installs quickly and easily.

which signals:

The GHLF horn offers a 520 Hz square wave

The D7050 MUX smoke head and D7050TH MUX smoke head w/ fixed heat (135°F) are UL Listed

GL1800P Gold Wing Audio 2006-2013

Includes mounting bracket

The Series Z Notification Appliances feature an easy snap-on base that is designed to simplify the instal­lation and testing of horns

Alarm bells must be used with the HC-BB weatherproof box for outdoor use

We'll accept the returns only if the item is returned in the same condition which was shipped to the buyer

The detector's stylish design looks great on top of a dresser or table

Velocity addressable

This product also features independent end-of-line (EOL) configuration that makes installation faster than ever before

and two Class A NACs – or any other combination of circuits that fall within the circuit-pairing parameters