Home / Detectors / Smoke Detectors / Notifier FSI-851 Notifier FSI-851 Low-profile FlashScan Ionization Detector Request a Quote This product is already on your Quote Request Browse your Quote Request Factory NewMaterial ObsoleteBrand: Notifier FireAlarm.com Part #: 68219 Categories: Detectors, Smoke Detectors Manufacturer Part #: FSI-851 Specifications Resources Information Weight 0.2 lbs Production Status Obsolete Brand Notifier Product Notes Replacement: FSP-851 & FSP-951-IV