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Description

Siemens FDT421 Heat DetectorThe Intelligent Thermal (Heat) Detector (Model FDT421) provides an advanced method of detection, address programming supervision combined with sophisticated FACP communication. Model FDT421 uses a state of the art thermistor, microprocessor and advanced signal analysis, providing high reliability and accuracy. Features Built in ISOtechnology Compatible with Siemens Model `H series devices on the same loop (with Desigo Fire Safety Modular FireFinder

Wheelock Power Supplies or other manufacturers panels incorporating the Wheelock Patented Sync Protocol

set using rotary decimal switches

The 50 watts of power can be divided between the two integral Class A/B speaker circuits

The gray textured enamel finish of the annunciators complements any decor

Zone Activations

The L-Series audible visible notification products offers the most versatile and easy-to-use line of horns

Meets ADA Requirements

Transition from single to multi-mode fiber on same network

CRB4U-1 4″ relay detector base

At the direction of an authorized operator (or by pre-determined program)

ASD-PL3-IV will support Velociti or CLIP (Classic Loop Interface Protocol) mode

stylish design