Based on the light scattering method, it detects airborne particles continuously. Pulse output that corresponds to concentration per unit volume of particles can be obtained, with using an original detection method based on light scattered principle similar to the particle counter.

• Stable and sensitive detection of not only cigarette smoke but house dust which are considered as indoor asthma triggers.
• Air is self-aspirated by the air current generation mechanism with a built-in heater.
• Easy maintenance. Sustainable high sensitivity.
• More compact, lighter, and easy installation.