Sibata Indicator Dust Digital LD-5R

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Compact handheld dust indicator

Performs real time measurement of suspended particle matter (SPM) in indoor spaces, public spaces and for industrial health purposes


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The LD-5R digital dust indicator is a relative concentration meter based on the light scattering method.

It measures the dust level in less time than the filtrated collection method. Due to its characteristics, the relative

concentration may be converted into mass concentration with the use of the coefficient of conversion into mass
concentration (K factor) calculated on the basis of the filtrated collection method.
The LD-5R PM2.5 digital dust indicator is a combination of the LD-5R with a PM2.5 cyclone particle size selector
to perform the simplified measurement of PM2.5 concentrations.


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