A handy safety device for your motorhome's electrical system. It is a surge protector analyzer with 30 amperes of surge protection. It allows you to check the quality of the connection to the power source before use. Automatically diagnoses various wiring errors. The device reliably protects electrical appliances from power surges thanks to its 8000 joule power. It is made of fireproof materials and has a waterproof housing. The device is easy to use - comfortable handles for plug connection. The ergonomic right-angle connector ensures a secure connection. This reliable protection for the motorhome will avoid equipment breakdowns and fires due to improper connection to the mains.