This adapter is essential to operate some devices (such as the free fall adapter ref. ME-9207B) with the different interfaces of the 850 or the 550.
Two ports are included on the digital adapter, allowing you to connect 2 sensors simultaneously.
It is possible to use several adapters simultaneously by connecting them, for example, to a Sparklink (ref. P / PS-2009) or a GLX interface (Ref. P/PS-2002).

Common applications:
Passage sensors
Free fall system
Period of a pendulum