Hi, Julian... The laser is very handy to have when you want to explain / show other people someting, which is up high and out of reach.. (in a hall, workshop or other high room)..some conduit, pipes...or whatever you want to talk about.. I have a green laser always in my toolbox for such cases...
I don’t think I would trust it to show something was dead, but rather to confirm something is live (and therefore potentially dangerous). Use a proper dead proving device for safety critical use, together with a proving unit.
That's a pretty cool one. I have a really old one and all it does is light up a red LED when you are close to the mains. But it has been really handy over the years.
Now we are all getting solar, they are going to need to make a DC one. As i've now got 300-400V DC running around the place and 98% of the wire is the wrong side of the isolator, as the isolator is next to the inverter. I just added an extra warning sign that states "don't play with while sunny"
@@Arachnoid_of_the_underverse except that my panels are on the roof by the time you get a ladder to get to the switch it would all be over. The cables externally are running in pipe work with more warnings on them than packet of fags.
@@Arachnoid_of_the_underverse Not seen a isolator on the roof as the cables go up the wall and stright under the panels. Also there is no isolator shown on the system diagram. So i'll have to assume that the only DC isolator i have is the two next to the inverter one for each string.
I wanted to adapt something like one of these to become a sensor for a raspberry pi so it could detect if the mains power was active or not which could for detecting power loss for Ups backup events. Never did quite figure it out.
Nice Video. But For checking voltage in a distribution Box I prefer to use my two handed voltage probe. (Just Like "Duspol" or "Fluke" ) I m in this Job, my live depends on it.
The stud / pipe and voltage finders often give a ‘live’ reading across a whole wall if there’s any foil backed plasterboard present. Same way the volt pen will claim a dead cable is live by induction from an adjacent live cable, or worse still will show a live armoured cable as dead because the armour acts as a screen. Important to recognise the limitations and features of your tools.
Just ordered the same model ( different colour) branding), otherwise identical off AliExpress for £2.99 Inc tax and shipping. At that price a bargain as other sellers are double or more. Always worth trawling around on Ali.
Better still, use a dedicated voltage tester and proving unit. Multimeters can easily be mis-set, e.g. if you accidentally leave it on DC when testing for mains. These volt sticks should never be relied on, they are handy for identifying say which of a bunch of cables is plugged in, or if a fuse might have gone - but that is all, they absolutely can't be used alone to determine if a circuit is safe to work on.
Never ever trust those things.
I once had a live reading from one even though I was looking at the two cut off ends of a piece of SWA cable!
Hi, Julian... The laser is very handy to have when you want to explain / show other people someting, which is up high and out of reach.. (in a hall, workshop or other high room)..some conduit, pipes...or whatever you want to talk about.. I have a green laser always in my toolbox for such cases...
The laser pointer is especially useful to point out things in a high voltage environment.
and say "don't touch that" :)
I don’t think I would trust it to show something was dead, but rather to confirm something is live (and therefore potentially dangerous). Use a proper dead proving device for safety critical use, together with a proving unit.
I have a Fluke one it's handy for fault tracing like blown fuses or lost phases, Never Ever use it to prove a dead circuit.
Yes, the test should always be relative/comparative.
@@dogwalker666 🤣🤣🤣
to test the dead circuit it not bleep
👍 2 in 1 🤣🤣
@@davey2k12 it's not fail safe, I have seen them indicate dead on a live circuit.
I'm tryna get better tools but I guess I need a voltage tester rather than a pen
I also find these things interesting for testing if there's any voltage leaking out of a DC power supply like over a usb charger.
The laser is added so that you can play with your cat.
That's a pretty cool one. I have a really old one and all it does is light up a red LED when you are close to the mains. But it has been really handy over the years.
Now we are all getting solar, they are going to need to make a DC one. As i've now got 300-400V DC running around the place and 98% of the wire is the wrong side of the isolator, as the isolator is next to the inverter. I just added an extra warning sign that states "don't play with while sunny"
Idealy there should be an isolator sited close to the panels precisly for this problem as high voltage DC is even more dangerous than AC.
@@Arachnoid_of_the_underverse except that my panels are on the roof by the time you get a ladder to get to the switch it would all be over. The cables externally are running in pipe work with more warnings on them than packet of fags.
@@TheEmbeddedHobbyist The roof mounted isolator is to remove the charge from the cables whilst working on them not an emergency isolation device.
@@Arachnoid_of_the_underverse Not seen a isolator on the roof as the cables go up the wall and stright under the panels. Also there is no isolator shown on the system diagram. So i'll have to assume that the only DC isolator i have is the two next to the inverter one for each string.
When I did the C&G electrotechnical course we were warned never to get caught using one of these..😬👍
High sensitivity increases the voltage range to include 12v DC
Audio is much better in this one thank you. Fun video :)
Always insulate your tip before you poke it in a socket, else you may end up with an expensive shock
The red laser dot is good for entertaining your cat.
I wanted to adapt something like one of these to become a sensor for a raspberry pi so it could detect if the mains power was active or not which could for detecting power loss for Ups backup events. Never did quite figure it out.
You can always just use a spare 5V USB brick (+ maybe a powerstrip) on a GPIO Pin to detect if the mains is online or not.
Nice Video. But For checking voltage in a distribution Box I prefer to use my two handed voltage probe. (Just Like "Duspol" or "Fluke" ) I m in this Job, my live depends on it.
Two-handed probe? Is that where you put one hand on Live and the other hand on Neutral and feel for Voltage?
Your life will depend on it. Live is the thing those with a life actually do. 😉
nice but I think I would trust my fluke more 🙂
That bus bar on your CU should not be exposed like that.
I took the cover off :)
You can never have enough lasers for entertaining cats etc.
It's well made and full of features. (a light and a laser. LOL)
The laser is for kill the zombies . I read that they are very agressive since the brexit
I wonder if he could detect the live wire in a wall or find that one bad bulb in a string of Christmas lights.
The stud / pipe and voltage finders often give a ‘live’ reading across a whole wall if there’s any foil backed plasterboard present. Same way the volt pen will claim a dead cable is live by induction from an adjacent live cable, or worse still will show a live armoured cable as dead because the armour acts as a screen. Important to recognise the limitations and features of your tools.
New Mic Julian?
..... it's not very good.... 😕
Just needs a bit of tweaking.
@@JulianIlett Sounds awesome to me....cheers.
Just ordered the same model ( different colour) branding), otherwise identical off AliExpress for £2.99 Inc tax and shipping. At that price a bargain as other sellers are double or more. Always worth trawling around on Ali.
Testr teardown hindi me banao
Not quite Big Clive standard, but showing promise 👍
better audio!
Thanks :)
Electrician say never use this type of things for confirmation, always use a multimeter
Better still, use a dedicated voltage tester and proving unit. Multimeters can easily be mis-set, e.g. if you accidentally leave it on DC when testing for mains. These volt sticks should never be relied on, they are handy for identifying say which of a bunch of cables is plugged in, or if a fuse might have gone - but that is all, they absolutely can't be used alone to determine if a circuit is safe to work on.