PeterJames

The new meter comes with a calibration certificate its calibrated at Farnell. We reuse the last years meter either in the office, I sometimes give them out to engineers when theirs fails or they lose their meter, or leave it on top of a van or whatever they do with them.

We use one of those but the bigger version We buy a new calibrated meter every year and check calibration against that

The would normally go across a large doorway or similar the modern version would look like below

They look like early IR beams transmitter and receiver.

Good old Github

Thats because Ubiquity makes lots of stuff you just need a txer/rxer that suits your needs. But if you have power at the camera end then yiu could just use a POE as others have suggested

Sorry the dodgy website in your link looked as if it was the type that would use a gmail address, you should have done the same when signing up here LOL

Also if youre going to covertly advertise tat, its best you dont use the same email address as you website

Ubiquiti Wireless would be a better choice

I think sometimes people try their luck with Ebay I can see anyone paying that sort of money for one when you can buy a new panel and keypad for a little more. I cant recommend a panel as the ones we install are not really diy, but plenty of people seem to like Scantronic ION and its a brand that bin around for years

I gave it some thought......for about ten seconds

This is why to be admissible in court the recordings have to be in original format and watermarked. MP4 is okay for minor crimes where in most cases the crim puts his hands up when he sees the footage because he doesnt know the rules. But if you need evidence that sticks it must be in original format

As above the relay wont have power on it, its just a switch to make the fan work you need to put power to it, but I guess this is not your objective. If you dont have a meter put one side of the fan to 0v put the other side of the fan to n/o and put 12vdc to the common then test it.

I would say it would stop the panel tamper activating but not the sounder from alarming

Not only that if he tells the OP the engineers code, the the OP has the engineers code for all of his customers systems. this would leave customers vulnerable, its a bit like ford telling customers a back door into the programing of their cars can you imagine the consequences

put a recorder in both buildings or use a ubiquity bridge

May be useful to someone that needs parts but doesnt want to go through the effort to buy a new system, but worth nothing to anyone in the industry I spend money skipping tat like that

You used to be able to add a dialer but PSTN will be switched off soon so nobody is making them. There are GSM dialers available subscription to a mobile phone network required. You can by IP communicators but I am not sure that there are any that will allow you to diy it, and most have a subscription, the ones that are free are rubbish. As swb says if your not paying for someone to look after the server that monitors your alarm then someone is not going to look after it. There were a few free servers at one time, but every time they went down there was no rush to fix them, and most now charge for the service and to be fair they are fixed quicker. The 800l is a 30 year old panel now, maybe its time to get a proper alarm

You seem to have got this site confused with facebook Dave

At least during daylight hours

That said that Vauxhall is probably a classic now according to Bangers and Cash. Its a bit different with electronics though, back when the Guardall panel was new everyone had TV's with CRT tubes, and incandescent light bulbs, I cant see those becoming classics anytime soon

TBF its only gonna be a problem if theres a fire and a fatality....?

£400 seems reasonable, my tyres costs circa £300 fitted, to begin with let alone getting a new one fitted on the motorway. There is a danger value and a callout cost and a convenience factor the more I think about it the more I think its a bargain.