System Sensor 4W-B Smoke Detector 4-WireThe System Sensor 4W B Smoke Detector is a 4 Wire Standard Plug in i3 Photoelectric Sensor with Base.

"FIRE" Marking

or either normally open or normally closed security devices

The base provides room-side terminals

The Simplex TrueSTART II Instrument (TSIT) is a portable

Local Indication Via LEDs

from 32°F to 150°F

Replaces: 4906-9201

eliminating the need for an additional AC source and battery backup

and Chassis

and remote alarm LEDs

The Silent Knight 6700 Replacement Board (Refurbished) is the main control board for the 6700 intelligent addressable fire alarm control panel

— 4098-9756