Well I made a ship with 11 Sensor MK IV (has a sensor range of 2). In the Ship Yard it says that said ship has a sensor range of 25, but once made the ship has a sensor range of 15. Seems like it is not counting the extra range of the new sensor type at all as a cargo hull has a base range of 3, I get +1 for sensor tech, and I have 11 sensors on it. That or it's not counting the sensor tech ability bonus at all and only counting the MK IV only once. Either way it looks bugged.