The Oobi Sensor is portrayed by Bluedog Cochran.
The Oobi Sensor's main objective is to sense Oobi's DNA so Kakoo can trap him and torture him. He does not think or have any feeling, being a robot. He talks in a deep, loud voice to ensure Kakoo can hear him, even if she is asleep. He can even tell if Kakoo is sleeping or not.
The Oobi Sensor has not been seen, only heard. It most likely has gears inside of it and bolts, as it is a machine.