Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not what I expected and it didn't work anyway.

I use a device like this to check for network presence. Replaced an old IOMEGA unit that I wore out. Turned this on, in the room with my router and it did not detect a signal. When I turned it on again, I got no lights. Like it needed a rest or something. Hooked up my old G router and the unit detected it. Would not locate my new N router signal. Since most new networks are now N technology, what use is this to me as either a service or traveling aid. Will likely return it. Did not note a B/G capability until I read the fine print on the package after I received it. A similar unit from Amazon selling for less than $10 worked fine. Returned this one, kept the other.Mobile Edge MEASL1 WiFi Signal Locator