System Sensor P2WH-LF

Sounder-Strobe, Low Frequency, 2-wire, 24 Volt, High-candela, Indoor, Wall Mount, White

Condition: New
Brand: System Sensor
Status: Obsolete
SKU: 81383
Manufacturer Part #: P2WH-LF
Replacement: P2WL-LF


The SpectrAlert Advance series offers the most versatile and easy-to-use line of low frequency sounder and low frequency sounder strobes in the industry. With white and red plastic housings, dual listed for wall and ceiling mounting, SpectrAlert Advance can meet virtually any application requirement.

Additional information

Weight 2 lbs
Dimensions 4.00 × 4.00 × 2.00 in



Production Status



  • 520 Hz ± 10% square wave tone
  • Plug-in design with minimal intrusion into the back box
  • Tamper-resistant construction
  • Field-selectable candela settings on wall units: 135, 150, 177, and 185
  • Rotary switch for low frequency sounder tone
  • Universal mounting plate for wall units
  • Mounting plate shorting spring checks wiring continuity before device installation
  • Electrically compatible with legacy SpectrAlert devices
  • Compatible with MDL3 sync module
  • Listed for ceiling or wall mounting


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Selectable-Output Low Frequency Sounder and Low Frequency Sounder Strobes for Wall Applications


System Sensor - Data Sheet