GE 521B-10PK

Description The ESL 500 Series self-diagnostic, two- and four-wire photoelectric smoke detectors are the industry's first conventional direct-wire smoke detectors with analog features such as drift compensation, multi-criteria detection and remote maintenance/trouble reporting (CleanMe). The 500 Series continually monitor their own sensitivity and operational status, and provide a visual indication if they drift out of the sensitivity range or fail internal diagnostics. The 521 Series also can send a signal (CleanMe) to any compatible control panel, allowing the dealer/installer to schedule a service call and avoid a false alarm. UL, ULC, CSFM Features and Benefits • CleanMe - remote maintenance reporting reduces false alarms (2-wire detectors only) • Smart dual fixed/rate of rise heats work with photo chamber to catch fires faster • Built-in drift compensation reduces false alarms • Field replaceable optical chamber makes servicing a snap • Small, low profile design blends in with any environment • See ESL Compatibility Index or call Sentrol Technical Support for panel compatibility

Photoelectric 2-Wire Smoke Detector with CleanMe, 10/pack, 10 pack box of 521B. 10 detectors, not individually packaged. 1 set of literature per box.