PMS-400A Multiscaler for Photon Counting

PMS400A 2 Channel Photon Counter

Becker and Hickl's PMS-400A is a peripheral component interconnect (PCI) based two channel 800MHz gated multiscaler for photon counting and includes Windows compatible operating software.

In multiscaler mode, the PMS-400A has up to 64k time channels, with a minimum 250ns per channel. In gated photon counting mode it has 1.5ns minimum gate pulse width.


  • 2 counter channels
  • 800MHz count rate
  • 32 bit resolution
  • Direct interfacing to most detectors



This product could be used for the following applications:

  • Fluorescence
  • Chemiluminescence
  • Light detection and ranging (LIDAR)
  • Decay measurement


This product is manufactured by Becker and Hickl GmbH.

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