Dual-Range Tester: amzn.to/2SDd6Gn Single-Range Tester: amzn.to/2u0zqj4 Disclaimer: Zach Fields may earn an affiliate commission when you buy through the links here.
Good video and nice demo! The one I bought today kinda had a knocking sound inside with the batteries having play width-wise and annoying. I cut a long piece of plastic from the packaing and filled one side of the battery hole after battery insersion. This makes it a very snug fit and the batteries are now held tight with no play or noise. Only deal is I have to employ needle nose pliers to pull the plastic out when the batteries need swapping! Small quality control slip ups like this one is pretty annoying. In fact the whole battery compartment and closing cap needs redesigning as is pretty suspect to me. It is a delicate fitting exercise and if the plastic cap breaks at some point, the whole thing is rendered useless. This is where companies like Fluke make that difference in quality I guess. I enjoyed the video very much, thanks! :-)
Just looked at your video. Great explanation and demo. Sensitive indeed! I was wondering how the disco'd wires in the junction box that I'm taking down were still indicating intermittently when touched a little while ago. I knew there was no power going to them so this video gave me the why on that. Thanks! Just subscribed.
Thanks for the video, mine was acting strange. I realized I hadn't changed the batteries since I bought it. Mine kept switching and beeping plus when bumped would read positive.
Yeah, unfortunately due to the sensitive nature of these meters you can get a false positive by bumping it against something. As you noted, fresh batteries do help. 🙂
I turn the fuses off for lights for the entire floor as I was installing new lights but did not have a voltage tester big mistake as the building was over 50 years old other people just wired the power to the light to a wrong fuse. As soon as I tried to wire the light in the second biggest shock of my life almost knocked me out fell limp on the ladder 8 feet off the ground could not use my hand for 5 mins.
How do you explain that it provides sound signal and LED light blinking on a dead wire that is not connected to any power source - like the wire has low level voltage - does mean defective? All other functions are as you describe it, and your video is so far best description on how this tool works. Even Klein's official video's are joke comparing to this simple and on point how to use this device video.
I have a box in the wall that runs a light over the sink and was also hard wired into a dishwasher, which has been remove. The previous owner also hooked the garbage disposal under the sink to the same box and it is that wire that is stuck behind the wall that I unhooked and need to test to make sure there is no electricity running through it. Am I able to ...once the power is on, test the wire leading behind the wall, able to confirm there is a dead wire and not a live wire back there??? So sorry for that long explanation.
Thanks for demonstrating that one can get a "false positive" with this tool (red flash despite zero voltage). Question: Does this tool only detect AC voltage? Or also DC voltage? (Probably a dumb question.)
why does my neutral wire never trigger the detector, even when the object being powered up is ON? I would assume there is current in the neutral wire (otherwise what dies it do?) and I should think it would be dangerous to touch. But my Fluke detector never triggers on the neutral no matter if there's current or not.
Yes, it will work for a 220 circuit. Remember, however, this is only a safety check. If you're having problems with a circuit or device, you'll need a multimeter to troubleshoot the issue.
@Eugene Bell I must admit I’m in a bit over my head for the finer technical details. My research in prep for shooting the video was not conclusive on this.
No current is required to be flowing in the AC circuit (ie. no load). These sticks work only if the user is grounded, because they are a capacitor, when it comes close enough to an active wire, the change in capacitance from the electric field of the live wire can be sensed because current will be drawn up and down from earth through the user to the tip of the pen to the electric field of the live wire. Because neutral is connected to earth - which is connected to pen, the pen will not trigger on neutral even if it has current.
Essential piece of equipment?... not for me, mine gives false positives on both live and dead outlets and switches, with breakers off it shows live and I have to verify with a VOM, neon tester or plug in a lamp to verify off condition....went back to other ways of testing a circuit and quit wasting my time with the Klein NCVT
Just bought one and only the green light comes on no matter what I touch...a live wire or a live outlet. And what is this crap about having to touch both sides of a live romax to detect voltage???? This should detect voltage by just touching the romax anywhere! This is junk! I had to cancel my job today because of this piece of crap.
Dual-Range Tester:
amzn.to/2SDd6Gn
Single-Range Tester: amzn.to/2u0zqj4
Disclaimer: Zach Fields may earn an affiliate commission when you buy through the links here.
This is the best instructional video on this item I've seen. Thanks.
Good video and nice demo! The one I bought today kinda had a knocking sound inside with the batteries having play width-wise and annoying. I cut a long piece of plastic from the packaing and filled one side of the battery hole after battery insersion. This makes it a very snug fit and the batteries are now held tight with no play or noise. Only deal is I have to employ needle nose pliers to pull the plastic out when the batteries need swapping! Small quality control slip ups like this one is pretty annoying. In fact the whole battery compartment and closing cap needs redesigning as is pretty suspect to me. It is a delicate fitting exercise and if the plastic cap breaks at some point, the whole thing is rendered useless. This is where companies like Fluke make that difference in quality I guess. I enjoyed the video very much, thanks! :-)
Just looked at your video. Great explanation and demo. Sensitive indeed! I was wondering how the disco'd wires in the junction box that I'm taking down were still indicating intermittently when touched a little while ago. I knew there was no power going to them so this video gave me the why on that. Thanks! Just subscribed.
Thanks for the video, mine was acting strange. I realized I hadn't changed the batteries since I bought it. Mine kept switching and beeping plus when bumped would read positive.
Yeah, unfortunately due to the sensitive nature of these meters you can get a false positive by bumping it against something. As you noted, fresh batteries do help. 🙂
I turn the fuses off for lights for the entire floor as I was installing new lights but did not have a voltage tester big mistake as the building was over 50 years old other people just wired the power to the light to a wrong fuse. As soon as I tried to wire the light in the second biggest shock of my life almost knocked me out fell limp on the ladder 8 feet off the ground could not use my hand for 5 mins.
Wow, what a story! Yep, you can't be too careful with wiring especially in old buildings like that.
Will this tester detect ground wires
Went to hime depot today. The hangers where empty, Most of them have been recalled. Except for a one priced at 28 bucks.
How do you change the batteries......
How do you explain that it provides sound signal and LED light blinking on a dead wire that is not connected to any power source - like the wire has low level voltage - does mean defective? All other functions are as you describe it, and your video is so far best description on how this tool works. Even Klein's official video's are joke comparing to this simple and on point how to use this device video.
Thanks so much! Great info and vid!
Great informative video. Thank you.
Would this work on high voltage batteries, like those Tesla.. they used DC current.. is this only for 120v?
I have a box in the wall that runs a light over the sink and was also hard wired into a dishwasher, which has been remove. The previous owner also hooked the garbage disposal under the sink to the same box and it is that wire that is stuck behind the wall that I unhooked and need to test to make sure there is no electricity running through it.
Am I able to ...once the power is on, test the wire leading behind the wall, able to confirm there is a dead wire and not a live wire back there??? So sorry for that long explanation.
@Here to Here for the situation you described, you should really check the circuit in question with a digital multimeter to confirm that it is dead.
What is the rapid beep vs the slow beep?
Thanks for demonstrating that one can get a "false positive" with this tool (red flash despite zero voltage). Question: Does this tool only detect AC voltage? Or also DC voltage? (Probably a dumb question.)
@Nancy Bryson
Good question. These will only detect AC voltage, not DC.
@@ZachFields I guess for DC you use a Multimeter then?
Could this detect spy cams?
How to order
How much i want to order
Thanks for you help
Great info thank you !!!!
Thanks for watching!
Mine has no blue light. Also never red on any circuit
Thanx...I'm sold ..I'm going to buy 1 this work and do some farm electrical lighting work..
Can I use klein non-contact tester on capacitors? Will it beep if it's not discharged?
I wouldn't recommend it.
why does my neutral wire never trigger the detector, even when the object being powered up is ON? I would assume there is current in the neutral wire (otherwise what dies it do?) and I should think it would be dangerous to touch. But my Fluke detector never triggers on the neutral no matter if there's current or not.
Is this a serious question?
@@dustinpomeroy8817 sounds you you don't know the answer.
There should not be power in the neutral wire or the ground wire.The the only wire that should have power is the hot one.
@@dustinpomeroy8817 so you don’t understand the question. Not “power”, “current”. Electrons moving back and forth.
@@cslloyd1 yeah there's no current in a neutral wire
Can the current for a 220 volt heater be tested? Thanks
Yes, it will work for a 220 circuit. Remember, however, this is only a safety check. If you're having problems with a circuit or device, you'll need a multimeter to troubleshoot the issue.
how can it tell the hot from the neutral? Both have AC current flowing through them and both create magnetic fields.
@Eugene Bell I must admit I’m in a bit over my head for the finer technical details. My research in prep for shooting the video was not conclusive on this.
Zach Fields, very good. Thank you for the videos.
This is why people go to technical college where they will explain this.
bitTorrenter, explain that the hot and neutral create identical magnetic fields, so cannot be distinguished.
No current is required to be flowing in the AC circuit (ie. no load).
These sticks work only if the user is grounded, because they are a capacitor, when it comes close enough to an active wire, the change in capacitance from the electric field of the live wire can be sensed because current will be drawn up and down from earth through the user to the tip of the pen to the electric field of the live wire. Because neutral is connected to earth - which is connected to pen, the pen will not trigger on neutral even if it has current.
Non-contact Voltage Testers are for Testing for Live, they should never be used to Test for Dead.
Essential piece of equipment?... not for me, mine gives false positives on both live and dead outlets and switches, with breakers off it shows live and I have to verify with a VOM, neon tester or plug in a lamp to verify off condition....went back to other ways of testing a circuit and quit wasting my time with the Klein NCVT
🇰🇷💗
Just bought one and only the green light comes on no matter what I touch...a live wire or a live outlet. And what is this crap about having to touch both sides of a live romax to detect voltage???? This should detect voltage by just touching the romax anywhere! This is junk! I had to cancel my job today because of this piece of crap.
don't trust this tool. I always pack my ac/dc tester. Klein should have a class action against them for this poor product.
That one is no good will work for a little while but don’t trust your life with it
Which one is better?
Had I known this was made in China I would NEVER have ordered one. :( #BoycottChina