Brand New System Sensor 2551 Photoelectronic Smoke Detector

The System Sensor 2351B (2351B-IV) photoelectric detector’s re-designed optical sensing chamber is engineered to sense smoke produced by a wide range of combustion sources in accordance with more stringent code standards. The sensitivity of Select Series detectors can be programmed using the control panel...

System Sensor 5551 Heat Detector

The System Sensor 2251TB is an Intelligent Addressable Photoelectric Smoke Sensor w/ Thermal (135°F / 57.2°C fixed) Sensor. The sensitivity of 200 Series detectors can be programmed using the control panel software to suit the environment. In addition, detector sensitivity is continually monitored and reported...

System Sensor 5251RB is a rate-of-rise temperature sensor with 135F fixed temperature alarm. The model 5251RB System Sensor is intelligent sensor that utilize a state-of-the-art thermistor sensing circuit for a fast response. These sensors are designed to provide open area protection with a 50-foot...

System Sensor 2251B Intelligent Photoelectric Smoke Sensors are designed for use with System Sensor intelligent control panels.COMPATIBLE INTELLIGENT BASES:— B210LP Standard U.S. flanged low-profile mounting base.— B710LP Standard replacement flanged low-profile mounting base.— B501 Standard European flangeless mounting base.— B200S Intelligent, programmable sounder base—...

The M500X Fault Isolator modules enable part of the communications signaling line circuit to continue operating when a short circuit occurs. The System Sensor M500X Isolator Module is an automatic switch that opens when the line voltage drops below four volts. This module is...

These sensors are designed to provide open area protection with 50-foot spacing capability as approved by UL 521. Model 5251B is a fixed-temperature sensor with a 135°F fixed temperature alarm. Model 5251RB is a rate-of-rise temperature sensor with a 135°F fixed temperature alarm. Model...

System Sensor 5551R Heat Detector

The System Sensor 400 Series plug-in ionization smoke detectors respond quickly to both fast flaming and slow smoldering fires as required by UL 268. Unipolar dual chamber sensor has the sensitivity needed to quickly detect smoke, and the stability needed to avoid false alarms....

Model 2251 is a plug-in type smoke sensor that combines a photoelectronic sensing chamber with addressable-analog communications. The sensor transmits an analog representation of smoke density over a communication line to a control panel. Rotary-decade switches are provided for setting the sensor’s address. Two...

The System Sensor 1251B is a plug-in Intelligent Ionization Smoke Detector head. 200 Series smoke detectors are intelligent (addressable) detectors with point ID capability that enable each detector address to be set with decade address switches to provide exact detector locations.The 1251B ionization detector...

The Model 5451EIS Intrinsically Safe Fixed-Temp Heat Detector is part of the 400 Series of Plug-in Smoke Detectors from System Sensor. Sensitivity: 135F (57C) Fixed or 15F/min rate-of-rise

The System Sensor M501M Intelligent Addressable Mini Monitor Module is intended for use in intelligent, two-wire systems where the individual address of each module is selected using rotary decade switches. It provides a two-wire initiating circuit for normally open contact fire alarm and security...

The System Sensor 2451 photoelectronic detectors utilize state-of-the-art, optical sensing chambers. Also, these detectors are designed to provide open area protection and to be used with compatible UL-listed control panels only. Besides, model 2451TH has the same specifications as Model System Sensor 2451, with...

System Sensor M500C Control Module

The M502M Interface Module is intended for use in intelligent, two-wire systems, where the individual address of each module is selected using the built-in rotary decade switches. This module allows intelligent panels to interface and monitor two-wire conventional smoke detectors. It transmits the status...

B501 bases are four-inch flangeless mounting bases designed for use with System Sensor® 200 Series detectors. They are intended for use with intelligent systems that have screw terminals for power (+ and -) and remote annunciator connections.

The B210LP is a plug-in detector base intended for use in an intelligent system, with screw terminals provided for power (+ and –), and remote annunciator connections. Communication takes place over the power (+ and –) lines.

The System Sensor D4240 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. Also, this unit operates in airflow speeds of 100 to 4,000 feet per minute, temperatures of –4°F...