System Sensor HW-LF Low Frequency Sounder White

System Sensor HW-LF

System Sensor offers the most versatile and easy-to-use line of low-frequency sounder and low-frequency sounder strobes. They come with red plastic housings, dual-listed for wall and ceiling mounting. SpectrAlert Advance can meet virtually any application requirement.

The wall-mount low-frequency sounder and low-frequency sounder strobes we re designed to address the NFPA 72 sleeping space requirements. That requires a low-frequency notification appliance. That operates within the frequency range of 520 Hz ± 10% and i s of a square wave tone. Like the entire SpectrAlert Advance product line they include a variety of features. That increases their application versatility wh ile simplifying installation. All devices feature plug-in designs with minimal intrusion into the back box. Making installations fast and foolproof wh ile virtually eliminating costly and time-consuming ground faults.

To simplify installation and protect devices from construction damage. SpectrAlert Advance utilizes a universal mounting plate with an onboard shorting spring. The installers can test wiring continuity b efore the device i s installed.

Installers can easily adapt devices to suit a wide range of application requirements. Using field-selectable candela settings, automatic selection of 12- or 24-volt operation. And a rotary switch for 520 Hz low-frequency sounder tones.

Features / Specifications

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 b efore device installation

Electrically compatible with legacy SpectrAlert devices

Compatible with MDL3 sync module

Listed for ceiling or wall mounting