Federal Signal

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Visual Signals

LSS Litestak® Sound Module

  • Available in 24VDC and 120VAC
  • Modular unit fits on top of any Litestak® configuration
  • Select one of 18 tones
  • Capable of outputs between 59-69dB @ 10' (69-79dB @ 1m)
  • Indoor use only
  • Type 1 enclosure
  • UL Listed and CSA Certified

The Federal Signal Litestak® Sound Module is a microprocessor-based audible signaling device. The model LSS can be used as a stand-alone audible device or combined with the Federal Signal Litestak light modules to create an audible/visual signal.

The sound module contains a microprocessor-based tone generator and an integrated speaker which produces one of 18 tones. Select tones by setting five, 2-position DIP-switches. The sound module can work as a stand-alone audible signal when plugged into the Model LSBS Low Profile Surface Mount Base or Model LSB Pipe Mount Base.

The Model LSS can be combined with any Litestak light module configuration of up to four colors. Controlling the sound module is done via the wires normally used for the clear light module. The sound module always occupies the top module position in a Litestak tower.

Ideal applications for the LSS include environments where the ambient noise is not extreme - assembly lines, conveyor systems, automated lines, instrument panels and workshops.

LSS is UL Listed and CSA Certified.

Federal Signal's Litestak Sound Module allows the user to add a distinctive audible signal to a Litestak Status Indicator.

Special Considerations

  • Specify base unit
    • Model LSB (For 3/4" pipe or surface mount)
    • Model LSBS (For low-profile surface mount)


Part # Description Ship Weight Net Weight  
LSS-024 Litestak® sound module, 24VDC 0.8 lbs. 0.6 lbs. Add to Quote >
LSS-120 Litestak® sound module, 120VAC 1.1 lbs. 0.9 lbs. Add to Quote >


Part # Description Ship Weight  

Replacement Parts

Description Part #  
Grille Kit, Black K8447014A-07 Add to Quote >
Snap Rivets, 25 pieces K7099A112A-01 Add to Quote >


Listed By Underwriter's Laboratory (ULus)
Audible signal appliance, general signal UCST_E4813.pdf
Certified by CSA International
Signal appliances, systems 4812_05_1253012.pdf






Operating Current

180 mA at 24VDC

70 mA at 120VAC

Operating Temperature Min. 32 F
Operating Temperature Max. 120 F
Enclosure Rating Type 1
Height 3.25 IN
Diameter 3.93 IN
Federal Signal distributed by Gross Automation - Brookfield, WI - Phone: (262) 252-1600 - Fax: (262) 252-1616
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