This is the T3-M4 utility droid from the Star Wars Knights Of The Old Republic videogame. T3-M4, created by Duwani Mechanical Products, is often seen as the precursor to R2-D2. Teethree has a manipulator arm on the front and a sensor on the top of his head.
About this creation
Sensor array. I recently changed the dish from a transparent blue dish to a solid medium sandstone Grey dish.