R9-series astromech droid

The R9-series astromech droid built by Industrial Automation. The R9 series was similiar to the R2 in capability but with enhanced sensors. Unlike the previous R8 the R9 returned to the use of a sensor 'eye' over that of a sensor 'dish'. Like the R8 it's able to speak basic, and thus can be understood even without knowledge of droidspeak which it uses to converse with other droids. The R9 is known for autonomously improving it's self preservation protocols to the point of even hiding information from their masters. The droid was introduced in the 2005 novel 'Star Wars: The Dark Nest 1 - The Joiner King'.