Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Normal
>> non contact tester> I bought a NCVT and mine is too sensitive. it beeps within inches of a hot wire, so too sensitive to parse hot and neutral lines in outlets. Great for finding wires behind walls.Sperry VD6505 isn't $5 but gets fair/good comments about the adjustment range.You need to have a brain. On max setting, it will tell you that a pile of paper is "live". Of course inside an electrified room there is sure to be some capacitive coupling to both the paper and to the user's body, so this is correct, if meaningless. For wall-scanning, you'd turn down until most of the wall was silent but a strip below/above outlets/switches beeped, then you can scan your zone of interest with some discrimination. For poking bare wire/screw, minimum sensitivity is probably what you want.
>> non contact tester
> I bought a NCVT and mine is too sensitive. it beeps within inches of a hot wire, so too sensitive to parse hot and neutral lines in outlets. Great for finding wires behind walls.
Sperry VD6505 isn't $5 but gets fair/good comments about the adjustment range.
You need to have a brain. On max setting, it will tell you that a pile of paper is "live". Of course inside an electrified room there is sure to be some capacitive coupling to both the paper and to the user's body, so this is correct, if meaningless. For wall-scanning, you'd turn down until most of the wall was silent but a strip below/above outlets/switches beeped, then you can scan your zone of interest with some discrimination. For poking bare wire/screw, minimum sensitivity is probably what you want.
