System Sensor HW-LF Low Frequency Sounder, White, Two-Wire

  • MPN: HW-LF
  • JMAC ID: 200222289
$63.83
JMAC_ID:
200222289
df_manual_boost:
2.20
Please Note: In order to keep our prices low, we have a minimum order requirement of $99
The SpectrAlert Advance HW-LF is a white, two-wire, 12/24 volt, low frequency sounder for wall or ceiling installation.

UPC: 783863044601
Also known as: BK-HWLF, HWLF

Technical Specifications:
  • Operating Voltage Range: 8 to 17.5 V (12V nominal) or 16 to 33 V (24 nominal)
  • Operating Temperature Range: 40F to 151F (40C to 66C)
  • Operating Humidity Range: 10 to 93% non-condensing
  • Location: Indoor
  • FWR Max. Operating Current: (see Data Sheet for complete current draw information)
  • Dimensions: 5.6 in. L x 4.7 in. W x 1.3 in. D (142mm L x 119mm W x 33mm D)
  • DC Max. Operating Current: (see Data Sheet for complete current draw information)
  • Color: White
  • Wiring Gauge: 12 to 18 AWG
  • Voltage: Regulated 12DC/FWR or regulated 24DC/FWR
  • Mounting: Wall


For more information about the System Sensor HW-LF, please contact us.
  • Electrically compatible with legacy SpectrAlert devices
  • Universal mounting plate for wall units
  • Rotary switch for low frequency sounder tone
  • Plug-in design with minimal intrusion into the back box
  • Tamper-resistant construction
  • White Finish
  • 520 Hz 10% square wave tone
  • Listed for ceiling or wall mounting
  • Compatible with MDL3 sync module
  • Mounting plate shorting spring checks wiring continuity before device installation

1 Review

  • 5
    SYSTEM-SENSOR-HW-LF

    Posted by 139718 on Mar 27th 2019

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