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It blinks its LEDs when polled and turns the LEDs on when commanded by the panel
— 4120 Series Network node fire alarm control panels
FSP-951 series detectors are available for both FlashScan® and CLIP applications as designated
Compatible for use with all Notifier Intelligent Fire Alarm Control Panels
NEW NOTIFIER FSP-951-IV INTELLIGENT PHOTOELECTRIC SMOKE SENSOR 5551J It blinks its LEDs whenNOTIFIER FSP 951 IV LOW PROFILE INTELLIGENT PHOTOELECTRIC SMOKE SENSOR Models FSP 951 and FSP 951 IV are plug in type smoke sensors that combine a photoelectronic sensing chamber with addressable analog communications. The sensors transmit an analog representation of smoke density over a communication line to a control panel. Rotary dial switches are provided for setting the sensors address.