I have this one...
(also available at most Home Depot's)
...and it's great for simple continuity tests. (Although it needs a strange battery; 6V about half the size of an AA, it only needs replacing every year and a half)
But I recently purchased this...
(you can find it cheaper on Amazon.com)
...and it's really the best thing since sliced bread.
- Identify lenght of cable run, or length untill open pair or shorted pair (A.K.A. other contractor puts a screw, staple, metal beam, or cube wall, through the line - this is how to find it without tearing everything apart)
- Identify port number and VLAN your linked into (on managed switches that support this)
- Blink the switch port LED (link and un-link rapidly, speed is adjustable, helps ID line without having to run to the other end and use a tone probe or put a dongle on)
- Tests for POE or other voltages (POTS!) on the line
- Grabs a DHCP address and can ping stuff, like the default gateway or DHCP server address, with low, high, and average ping times (usefull to prove to a user thier NIC or computer sucks, and it's not the network cableing)
- Save multiple tests to internal memory and dump to a PC via USB, then print out a pretty report showing all pairs OK and lenght of each run
Product page: »www.flukenetworks.com/enterprise···ltimeter
Click the virual demo button is fun.
Full disclosure, no I don't work for Fluke, but I am really excited about this tester
Expensive, yes | Huge time saver, yes | Being able to show cabeling contractor (who doesn't even have such a nice tester) what a bunch of %$#@$ they are, priceless