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 SD-651 is designed to meet the performance criteria designated by UL. Its sensing chambers are sealed against back pressure air flow, dirt, and insects.
The DKM18 allows for the expansion of a digital call station to increase the number of available keys and LEDs. It makes it easy to select loudspeaker circuits and transmit voice announcements for a n
Wheelock Series MPS non-coded Manual Pull Stations are constructed of high quality, die-cast metal for long lasting performance and may be mounted on a single gang backbox.
System Sensor’s SSM Series alarm bells are low-current, high-decibel notification appliances for use in fire and burglary systems or other signaling applications.