Whelen ALPHASL 200 Watt Remote Siren

Your Price $202.80 Retail Price $312.00
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This remote siren delivers 200 watts of siren power with hands free operation, multiple warning tones and horn ring override capability. It is backed by a Whelen two year warranty. 
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The economically priced Whelen ALPHASL Remote Siren delivers 200 Watts of siren warning power. This siren features Hands-Free operation, multiple Scan-Lock programmable warning tones and horn ring override capability. The ALPHASL siren offers easy set-up and configuration to meet local requirements without special ordering. This siren is not appropriate for motorcycle use.


  • Scan-Lock feature allows you to toggle through 15 siren tones.
  • Operates one or two 100 Watt siren speakers.
  • Compact design is perfect for undercover and volunteer applications.
  • Control siren tone through horn ring or separate switches.
  • Hands-Free operation lets you cycle through two or three siren tones using horn or auxiliary control.
  • Meets Class A requirements with most 100 watt speakers.
  • Harmonically rich composite Air Horn tones.
  • Output open/short circuit protection.
  • Five optional switch panels available.
  • Will also operate from customer supplied switching controls.
  • Pre-wired with one 16 pin quick disconnect plug for easy service and fast replacement.
  • Easy to install.


  • Voltage: 12.8 VDC
  • Polarity: Negative Ground
  • Polarity Protection: Diode / Fuse
  • Output Power: 200 Watts (2 outputs at 100 watts each)
  • Output Load: Two 11 OHM speakers
  • Input Current(OFF): 0 ma
  • Input Current(SIREN ON): 15 amps (max)
  • Standby Current: 10 ma (max)
  • Fuse: 20 amp (auto fuse)
  • Fuse Mounting: Spade type on PC Board
  • Output Short Protection: Fuse
  • Horn / Ring Control: +12VDC or Ground
  • Weight: 2.4 lbs / 1.2 kg
  • Operating Temperature: -30°C TO +60°C
  • Operating Humidity: 0-95% Non-condensing
  • Size: 2 1/4' (54mm) H x 4 3/4' (120mm) W x 5' (127mm) D.

Whelen 2 Year Warranty

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ALPHASL_Install_Guide (221.09 kB)