The 500N series four-wire conventional photoelectric smoke detectors bring together trusted technology and a full line of features to meet the demands of every type of application.
Also known as: ES-541NB, UTC-541NB
For more information about the UTC (Formerly GE Security/ESL) 541NB, please contact us.
Built-in dust compensation
4-Wire
Field-replaceable optical chamber
Self-diagnostics Meets NFPA 72 Sensitivity Testing Requirements without the Need for External Meters
World’s Only Replaceable Optical Chamber Makes Any Required Cleaning a Snap