Chongqing Fugui device on my network
Chongqing Fugui Electronics is a contract electronics manufacturer in Chongqing, China.
What Chongqing Fugui makes
Fugui assembles electronics for other brands, so its address blocks show up on devices whose brand does not appear in the registry entry at all.
What the device on your network probably is
Most likely a computer, TV, streaming device or console that the factory assembled for another company. The name alone does not narrow it further.
How to work out which device it is
Check the MAC in the network settings of computers, TVs and consoles, and turn devices off one at a time. Consider whether it appeared when you set up something new.
Should you be worried
Nothing to worry about in itself. The name tells you who assembled the board, not what the product is.
The app finds every device on the Wi-Fi you are on, at home or in a rental, and puts the vendor next to the hostname, the services it advertises and its open ports, which together usually name the product. Where it cannot tell, it says so instead of guessing. Get RECON for iPhone — one-time purchase, no account, nothing leaves the device.