The detector provides simultaneous control of the specific optical air density level in the space above suspended ceilings and inside the room.

• Unique feature: you use the single unit instead of two
• Quick and easy to install: cutting installation and removement time and making maintenance easy
• Yellow and red LEDs indicate 7 different conditions of both sensors
• Easy monitoring of upper sensor that is unique relatively to the traditional way of protection of premises with suspended ceilings
• Automatic drift compensation
• Self diagnostic feature
• Mechanical testing
• Base, mounting ring and protection cover are supplied with the detector
•  Different heights of connecting pipe (20,40,60 cm)
• 4-wire connection of both sensors to one fire alarm line
• Fault signal when the detector is detached from the base
  
• One red and one yellow LED indicators