Here is a WiFi robot that lets you inspect hard to reach areas. It has a tablet controller and relies on WiFi to stay connected. The 4WD Inspection Robot comes programmed and fully assembled. It has a full pan and tilt camera with 10X optical zoom that gives you a 360-degree view.
This robot is rugged and capable of inspecting areas not easily accessible to people. You can record the video feed on your tablet. Like what you see? You can find out more about it here.