GE Security 521B Photoelectric 2-Wire Smoke Detector w/CleanMe, 6/12 or 12/24VDC. S09A, S10A Compatible
The ESL 500 Series including the 521B and 521BXT self-diagnostic, two- 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 a
List Price: $ 33.00
Price: $ 33.00
