This transmitter allows you to open or to close 8 (extendible up to 16) different contacts from just two wires

 For use with K6701. For use in model building, model trains, or wherever you want to establish several connections with only two wires. Connection of several receivers on one transmitter is possible (several transmitters on one receiver is NOT possible !)
Specifications

• power supply of the transmitter over the data line
• transmitter and receiver are extendible up to 16 channels
  
• tested up to 50m, 164'
  
• dimensions: 45 x 37mm (1.8" x 1.5")
  
• recommended housing: WCAH2855 or G404

Store price: 17,000€ 
Internet price(With V.A.T.): 13,610€