If smoke is present in the beam’s path, the received signal is reduced by a level determined by the density of the smoke.
The Thermotech 302 Series rate-anticipation heat detec- tors operate within a controlled range of two to three de- grees of their set points, regardless of the speed or rate of temperature rise.
The SpectrAlert Advance series offers the most versatile and easy-to-use line of low frequency sounder and low frequency sounder strobes in the industry.
The SpectrAlert Advance P2RHK-P is an unmarked red, two-wire, outdoor horn strobe with selectable high-candela strobe settings of 135, 150, 177 and 185 cd. Outdoor back box included.
The 4WITAR-B is a 4-wire, photoelectric i3 smoke detector with isolated thermal sensor, built-in sounder, and Form C relay.