The Nano Particle Sizer ANALYSETTE 12 is offered with two detector systems:
 

ANALYSETTE 12 DynaSizer – the standard model for all measuring task is equipped with a very powerful Photo-Multiplier (PMT) with high amplification factor > 105, quick response time < 10 ns and a very low dark current of approximately 150 cps.

ANALYSETTE 12 Dyna Sizer plus - is suitable for particle concentrations of a few ppm and particle diameters of < 10 nm. Equipped is the DynaSizer plus with a Single Photon Avalanche Diode (SPAD), thermally stabilised with Peltier elements and due to active quenching low dead times of below 0.1 ns and a dark count rate in the range of 10 cps.