Model: BI-90Plus particle size range: 1nm ~ 6μm (and the refractive index, concentration and scattering angle related) Typical accuracy: 1% Sample Type: Any colloidal size range of particles suspended in the supernatant sample volume: 1 ~ 3ml, 50μL small sample Pool Temperature range: 6 ° C to 100 ° C, ± 0.1 ° C laser source: 35mW solid state laser detector: PMT or APD Auto Trend Analysis: Time and temperature scattering angles: 15 ° and 90 ° automatic titrator connection: optional, and BI-ZTU connection, you can right pH, conductivity and temperature operating conditions plotted additive concentration: 10 ° C ~ 75 ° C, humidity 0% to 95%, non-condensing Optional: 50mW solid-state lasers ; professional light scattering analysis software; 12CFR part 11 software operating modes