Review on Sperry Instruments TT64202 Cable Test Plus - Short, Miss-wire & Reversal Detection - 2 Pc. Kit by Corey Katchem

Useful when you want to know if a cable has a bad connection or is still good! However, it will not tell you the resistance through the cable. Display only in LEDs. Another useful situation is when you're looking at a group of unlabeled cables and don't know which cable goes where. You plug the transmitter part of the device into the end of the cable in the target room. Then check each cable at the end of the cluster for output from the transmitter. Durability: Looks like it can withstand being dropped or stepped on. The two pieces slide together, just don't drop them while they "slide together". Batteries: 2 AA, small Phillips screwdriver required to install or replace batteries. Ease of use: No reading required, at least for me.