Siemens FDOT421





The Siemens FDOT421 is a versatile smoke detector that combines optical and thermal sensing technologies for reliable fire detection. This photoelectric, plug-in device operates on a 2-wire system with a voltage range of 16 to 30 VDC. Designed to function effectively in environments with up to 95% non-condensing humidity, it also includes a self-testing feature to ensure ongoing performance. Distributed by BSP Automation, the FDOT421 offers a dependable solution for monitoring smoke and heat in industrial and commercial settings.
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