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an intelligent plug-in photoelectric smoke detector
— B501BH Intelligent Sounder Base (B200SR Replaces B501BH series bases in retrofit applications)
compatible for use with ONYX® Series nodes such as the NFS2- 3030
also unipolar ionization chamber
They are smart analog standard addressable devices available in plug-in versions (UIO) and also in 1-group mounting versions
System Sensor 2251TB Intelligent Photoelectric smoke detector with thermal 2251 an intelligent plug-in photoelectric smokeThe System Sensor 2251TB is an Intelligent Addressable Photoelectric Smoke Sensor w Thermal (135F 57. 2C 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 to the panel.
