The heat detector FDT181 is an intelligent detector. It is used for early fire detection inside a building.

• With built-in CPU, signals received are processed by intelligent algorithm
• Two operation modes: A2S/A2R
• Automatically address setting without encoder setting or DIP switch
• All-around visible alarm indicator
• Resistant to environment and interference factors such as humidity, corrosive and
  vibration, with immunity against electro-magnetic interference.
• Communication via FD18-BUS, polarity free connection
• “Sticker Method” easy for commissioning