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System Sensor HRL-LF
Warranty Terms and Conditions

System Sensor HRL-LF

by SYSTEM SENSOR
$66.52 - $66.52
$66.52
$66.52 - $66.52
$66.52
Availability :
48 in stock, ready to be shipped

dataSheet

Product Overview

 The L-Series low-frequency sounders and sounder strobes provide versatile, easy-to-install notification appliances for wall and ceiling mounting. Designed to meet NFPA 72 sleeping space requirements, they produce a 520 Hz ±10% square wave tone. Plug-in design minimizes back box intrusion, reducing installation errors and ground faults. A universal mounting plate with onboard shorting spring allows wiring continuity checks before installation. Field-selectable candela settings, 24V operation, and a rotary switch for Temp 3 and Temp 4 tones offer flexibility for diverse applications.

Key Features

  • 520 Hz ±10% square wave tone, NFPA compliant
  • Full candela range with High/Low tone options
  • Compact, standard, and round ceiling models
  • Field-selectable candela: 15, 30, 75, 95, 110, 135, 185 cd (wall units)
  • Rotary switch for High/Low, Temp 3, Temp 4 settings
  • Plug-in design minimizes back box intrusion
  • Mounting plate shorting spring for wiring continuity checks
  • Compatible with legacy SpectrAlert and SpectrAlert Advance devices
  • Modern aesthetic design
  • Compatible with MDL3 sync module