What tool or gadget could a non technical person use to test Ethernet and Wifi?

Question

I need to help less savy staff, show our customers at a convention center that yes our wireless system is working and our wireless to Ethernet bridges work too and we wont touch their foobared computer because of liability. I need something Small, simple, and convincing, and could be two different devices.

No I can't get anybody to lug around a laptop, especially they do alot of walking to get around.

This device may meet part of my needs, but it doesn't connect to wireless.

http://www.canarywireless.com/canary/hs20.html

Answer 1

Your idea for the detector will prove that your wireless works, but won't help or satisfy your customers.  I would suggest you print up some directions for wireless access in your facility, and distribute them generously, with some of the typical fixes, (firewalls, static ip, DHCP etc.) especially before events through the conference organizers.  Always put in a disclaimer though, that due to to the many varied and unique individual configurations, you cannot guarantee that all users will be able to access your network.