890b488c_oplet_Measurement_Technologies__Parameter
[Specification] Scattering signal: 200 – 430 nm diameter (this range encompasses the accumulation mode of most particles, i.e. range where most mass is found); range can be extended to 700 nm using software post-processing of saturated signals. Incandescent signal: depends on particle density, but 70 – 500 nm mass-equivalent diameter assuming a black carbon density of 1.8 g/cm3 [Parameter] 
Particle Size Range
Single Particle Soot Photometer (SP2) | Droplet Measurement Technologies
Parameter