The System Sensor 2151 low-profile photoelectric smoke detector with a B114LP or B114LPBT base is listed to Underwriters Laboratories 268A specifically for use in noflow/low-flow air-handling systems.

• Low-profile smoke detector design
• Low standby current
• Two LEDs blink in standby
• Detector head plugs easily into base
• Field sensitivity metering of detector to meet the requirements
of NFPA 72 with the use of SENS-RDR
• Designed for mounting on a standard electrical box
• Removable cover and insect screen for field cleaning
• Accepts 24 or 120V supply voltage