Edwards EST 5251FB Fixed Temperature Heat Detector notifier fsp-851 The Model OP121 auto-sensitivity feature

The Model OP121 auto-sensitivity feature originates from its internal

27 cm) high

This detector also has the latching alarm feature

one HS-NCM can provide network communication for both an NFS2-640 and an NCA-2

Edwards EST 5251FB Fixed Temperature Heat Detector notifier fsp-851 The Model OP121 auto-sensitivity featureThe Edwards EST 5251FB is an intelligent Heat Detector. COMPATIBLE INTELLIGENT BASES: B210LP Intelligent Flanged Mounting Base B224BI Intelligent Isolator Base B224RB Intelligent Relay Base B501 Intelligent Flangeless Mounting Base B501BH Intelligent Sounder Base (B200SR Replaces B501BH series bases in retrofit applications) B501BHT Intelligent Temporal Tone Sounder Base