The LD-3B series is a digital dust monitor with easy mass concentration conversion function by just entering the mass concentration conversion coefficient (K value). It also has a built-in data logging function and the captured dust monitoring data can be transferred to a PC for further processing. [Features] • Easy display with LCD with backlight • The data logging interval can be set between 1 second and 99 minutes 59 seconds. • By presetting the mass concentration conversion coefficient (K value), CPM can be quickly converted to a mass concentration (mg/m³). • Light scattering and background values remain stored even after the power supply is switched off. • 3 types of standard data output → USB / RS-232C output → Voltage output (0 ~ 1V) → No-voltage pulse output (open collector) * For more details, please contact us or download our catalogs.