FAAST LT-200 smoke detection system by aspiration. The equipment includes 1 high sensitivity LED detection chamber specially designed to cover Class C, an ultrasonic flow sensor and protected electronics. FAAST LT-200 includes provides pre-alarm functionality for graduated alarm thresholds. A pendulum-shaped graphic bar with indications of pre-alarm, alarm and particle thresholds, air flow control verifies that air flows according to the requirements of EN54-20. The information can be read easily and quickly in the user interface or via USB connection using the PipeIQ LT program.