The X20 is a quadruped robot dog that can be used for search and rescue missions and inspection. It comes with various sensors for obstacle avoidance, terrain recognition and navigation. It is IP66 dust and water resistant. It can step over a 20cm high obstacle. It comes with WiFi, Ethernet, and USB connectivity.
This video shows the X20 robot being used for tunnel inspection. It can detect cable surface discharge, corona discharge, internal discharge, and temperature abnormality. It also has a robot arm for inspection.