Whelen WC external siren amplifier CCSRN4DA

Used condition. These have been bench tested with a Whelen cencom carbide and function with a 100 watt siren speaker. 
THESE WORK WITH THE WECAN SYSYEM ON CARBIDE and CANTROL SYSTEMS ONLY. WILL NOT WORK WITH SAPPHIRE OR AS A STANDALONE SIREN CONTROLLER.  
Has normal signs of cosmetic use including scratches scuffs etc. Over 50 in stock and manufacturer and version code may vary. 
NO CABLES ARE INCLUDED. YOU WILL HAVE TO BUY A 4 PIN POWER/SPEAKER AND 3 PIN WECAN PLUG. 
Model #CCSRN4DA
Part #01-066G558-000