The ESL 400 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. The 400 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.
UL, ULC, CSFM
- 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
- Compatible with most fire alarm and security panels
