Home / Detectors / Accessories / Detector Bases / Simplex 677-201 Simplex 677-201 $87.47 Detector Base Relay 4098 Availability: Estimated 6 - 8 Business Days Simplex 677-201 quantity Add to cart Request a Quote This product is already on your Quote Request Browse your Quote Request Factory New FireAlarm.com Part #: 72417 Categories: Detector Bases, In Stock - NX, In Stock - PR Manufacturer Part #: 677-201 Tag: PR Specifications Information Brand Simplex Condition New