System Sensor L-Series and L-Series with LED platform offer the most versatile and easy-to-use line of Low Frequency Sounders and Sounder Strobes in the industry, with lower current draw and modern aesthetics. They are designed to address the NFPA 72 sleeping space requirements that require a low-frequency notification appliance that operates within frequency range of 520 Hz +/- 10% and is of a square wave tone. Flexible design options meet virtually any application requirement; wall or ceiling mount, red or white color choices, bezel kits for alternate markings and languages, and LED color lenses for distinctive visual signaling. The L-Series and L-Series with LED appliances are developed to simplify installation. All devices feature plug-in designs with minimal intrusion into the back box, making installations fast and foolproof while virtually eliminating costly and time-consuming ground faults. The universal mounting plate includes an onboard shorting spring, so installers can test wiring continuity before the device is installed. In addition, the System Sensor L-Series with LED notification appliances offer a new diagnostic test point feature that allows you to measure device voltage with a digital voltage meter (DVM) without removing the appliance from the wall or ceiling. The DVM test points are discreetly located on the face of the notification appliance, which enables faster troubleshooting and end-of-line (EOL) voltage checks while greatly reducing the risk of misplacing or damaging appliances during troubleshooting. Main Features 520 Hz +/- 10% Square wave tone, NFPA compliance LED Technology for Low Frequency Sounder Strobes provides lower current draw Digital Voltage Meter (DVM) diagnostic test points for Sounders and Sounder Strobes Field-selectable candela settings on wall units 15, 30, 75, 95, 110, 135, and 185 High/Low tone options to optimize current draw for a wide variety of applications Rotary switch for candela, tone and volume selections Mounting plate provides plug-in design for easier installation and shorting springs to check wiring continuity Electrically compatible with legacy SpectrAlert, SpectrAlert Advance and L-series devices at 16-33VDC Synchronization through use of UL approved power supplies that support System Sensor Sync protocol or System Sensor MDL Sync Module Compact, standard, and round ceiling options
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