For bidding is a Techtronics 1503 TDR, Cable tester with chart recorder.
It has been modified for use with an external 12v DC power supply (power cube, or stand alone supply)
 
 
Used, Working, what's in the pic is what's included.
 
PLEASE READ: I am standing FIRM with my No Return policy, esp. with electronic & audio equipment!
 
I have been getting a lot of returns, Simply Because the buyer, A) Does not know what the item is, or how to use it, or B) Is connecting it incorrectly, and inappropriately, and frying the unit, then wanting to return it. If you don't know what this unit is, or how to use it, don't buy it, Sale is Final!
 

I provide an accurate assesment of an items condition, and if I say it is tested and working when it leaves here, it is. I'm not a pro seller/store, I'm just trying to downsize.