Siemens FDT421 Heat Detector imported eBay allowing for complete application and

allowing for complete application and placement flexibility

Switch for continuous or temporal 3 tone (not available on whoop tone)

E3 Series Combined Fire and Mass Notification System

Inputs can be independently configured via the fire control panel for alarm

it combines reliable defense with ease of use

Siemens FDT421 Heat Detector imported eBay allowing for complete application andThe 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