Arrowhead

Shorrock

Thats one of them :)

Nope :) lhs one manufacturer begins with V

@@mrmattandmrchay visonic

cool, glad you liked the video! Thanks for the comment.

It's in a couple of weeks, I'll pass on the message, thanks!

Time is passing, when I first watched a video on this channel, he was still a little boy.

Thanks very much for the compliment James!

Thanks for the comment, glad it's uploaded as I was becoming too obsessed with perfecting it!! (was taking FAR too much of my time!)

They've appeared on all my videos for the last 2 years! I've just gone back to June 2019 ukposts.info/have/v-deo/b3KjYXtraGd8wKs.html. Just following the trend and advise from other channels (from 2 years ago)

Cool, thanks! That's my aim with all my videos, easy to understand and hopefully interesting to watch :)

I cringe when people wave their arms around in front of them to activate detectors that are far enough away, then they say "look it isn't very sensitive". Sigh! Yes, about the heat issue, that's why (unless they're really close) trees and bushes swaying doesn't activate external PIRs. I use Visonic Duo 360 PIRs (actually they are dualtecs) in our house - really small! The living room unit, the microwave part is always activating when someone is in the bedroom above - obvious that's fine. In PartSet, if the PIR doesn't detect anything then all is good! Thanks for the comment :)

Some PIRs motion detectors have an oddly shaped field of view though. The one controlling the light aboce the entrance to this building often times triggers when I am still parking my car quite a bit away from the door, but as I am standing in front of the door getting my keys out of the pocket it fails to detect me, no matter how much I move around. Having an alarm system inside someone's flat is really uncommon here, even for houseowners it's not that common to have an alarm system. Some do, but it's rare. Most alarm systems here are installed in business environments, where nobody is around at night - and also often nobody is in the neighborhood as well. Around poeple's homes here in Germany, motion sensors of all kind are usually a convenience thing to turn lights on when needed. Or like in my hallway the only way to turn a light on, the hallway of my flat seems to have been extended at some point, relocating the entrance to the bedroom - but the hallway extension didn't have any lights. Not wanting to make a big mess installing a light switch, I just routed a wire across the attic, coming down through the ceiling in the right place for a light - but the only option to turn it on was a motion sensor... Fortunately it doesn't detect motion close to the floor, as my cat (when I still had her) was able to walk underneath the light without triggering it. Greetings from Germany from somewone who has been following your videos for a really long time - probably not too long after you started this channel. :-)

That's what I enjoy, passing on knowledge with the hope that I'm helping others understand how things work. Thanks for the comment!

Thanks very much Brunoais!

cool, thanks very much for the comment :)

wicked! Glad you liked it. To be honest I was glad to get it uploaded - was editing it for so long, was starting to become an obsession to perfect it!!

hey, thanks! I have loads of PIR videos coming up. Already recorded, most need editing, but also trying to get a few lift videos inbetween! This PIR video has taken more than 2 months of my spare editing time.

@@mrmattandmrchay great!

Thanks Thomas and glad you liked it

Cool, thanks for the compliment Luke!

Thanks Renee (I like your name by the way!)

That's an interesting comment, perhaps the read frequency was low on that PIR, so if you ran fast enough, the pulses couldn't be read quickly enough? I must admit, never considered this before but could be a cheap design?

Thanks very much Simone! :)

Glad you liked it! There were a couple of detectors which did have the 'lens zone finder' LED. One of which is featured in an up-and-coming video. Another of which was the Visionic SuperRed PIR, but essentially it was an LED that 'covered' the pyro electric detector, just so that you could see the zones. You had to remove the LED afterwards. But any LED that shows the zones would have to be placed in 'exactly' the same position as the pyro, therefore it couldn't remain there for normal functionality. Addressable PIRs (unless wireless which is totally different) are never a good idea, having data travelling up and down cables introduces a whole host of problems, with compatibility with panels, to data-issues on the cable. Thanks for the comment.

@@mrmattandmrchay Very interesting, I'll be looking forward to that upcoming video.

I watched a video the other day about how a computer processor is made - amazing, and as you say, everyone overlooks just how much goes into making all devices that we take for granted. Including something as 'simple' as a PIR.

I have so many videos to complete, including a dumb waiter video that I said I'd do, that was back about 3-4 years now! These 'explaination' videos take the longest because there is so much planning to do, then the animations, etc. Good news is, I'm staying away next month which will give me some spare time to do them.

Did you like that 'ball pir' thing near the start? Someone sent me that video and I'm told it's definitely a PIR (rather than what I thought it was, which was a microwave). Now THAT is old!! Would love to explain it. Yeah they are quite interesting! Thanks for the comment.

@@mrmattandmrchay yea, that was really cool I might film a lift today but probably not because my great Nan died.

@@mrmattandmrchay oh no., my alarm systems are being replaced but I will get the old pirs so that’s good also I accidentally lost the Mitsubishi video so if you could send it to me would be a gift from god.

oh no way....! Sorry about that, did send you a message to see if you were still on but you didn't reply. Crossing my fingers that the video will make up for leaving early ;)

@@mrmattandmrchay haha, should of checked really lol, great video nevertheless

Would be better to angle the PIR down to avoid it being aimed at the road. The upper zones of the lens are probably the most sensitive, as those are designed for 'distance'. The middle and lower set, the segments are smaller and are designed as look down zones. Ah - but I've just read that you cannot adjust the angle!! ...therefore the only way is to mask the lens. Colouring in the lens won't work, the ink thins out and doesn't apply evenly - if the PIR can see through the plastic lens, ink won't really do anything. Best way I found is silicon sealant to mask it. But PVC tape works just as well, cut it with scissors to make it look good (rather than tearing it).

Cool, thanks for the comment! Dualtec's are used by most companies to reduce false alarms, PIR only are really only used for domestics due to their smaller size. Can't see any reason for a company to not use Dualtecs for most sites.

@@mrmattandmrchay I fitted a dual Tec in my house as was getting false alarms from Pet PIRs. No complaints so far.

haha, thanks!

Hi, if I know 'what' it is? Looks like it could be a microwave unit, but it's actually a PIR.

@@mrmattandmrchay I meant if you know the brand, sorry if I wasn’t clear enough

Or the model

ukposts.info/have/v-deo/eYqign2jbKyTy58.htmlsi=zdlrkiwFXljJSeRu&t=318 Nut not sure what you're meaning by "sensing the angle" of detection? It uses the lens to aim it into the room, lens has lower areas for it to look lower.

If you move slowly enough then it's possible, but I'd like to see a burglar break into a house and steal the widescreen TV moving that slowly! :D It also depends what part of the PIR lens is detecting you. If it's the main/upper set, then very difficult. The lower segments of the lense you'll notice on some PIRs are slightly larger, but less of them - it's to do with the angle of the lense compared to where the pyro is mounted on the PCB - the lens has to be enlargened to compensate.

@@mrmattandmrchay Screwing around with an alarm system for fun is one thing, but you're correct that a burglar wants to get in, grab, GTFO, in the shortest time possible since they don't know when someone could potentially pull up. I've noticed the older PIRs were easier to sneak up to/past compared to the newer ones.

Yes, and I'm really annoyed about the spelling error (I am "mr attention to detail), but unfortunately it's too late now :( :( Thanks for the comment anyway.

I've been in the industry since 1989 - yes of course, some fail, but I've never heard of a 40% failure rate. Fitted hundreds, for me 0.5% failure rate.

It's a very simple way of joining two devices together so they can talk to each other using inputs and outputs. Only recently, a customer wanted a system to do something that wasn't achievable within the programming of the systems. But I added a few relays, a couple of timers, linked some outputs from system A, to inputs on system B, and managed to do exactly what the customer wanted. It was a little more complicated than that, but you get the idea? Never would have been able to achieve it without relays, even in 2021!! Good thing is, you can see exactly what's happening without software (i.e. is the relay on or off).