Gabs

Was thinking about that, I may make a Mk. 3 version with an Arduino Nano micro-controller, which has a delay on it, the Viper does to stop false alarms from insects. Might give using IR LEDs a go too

@MrHappy @Nova-Security Cheers for the help with these, I have finished the Mk. 2 Anti-Foam module, looks very similar to the V-Foam

Wow, thanks. I am glad that you like my projects. I thought about a diode, and I will add one in the Mark 2 version. And thanks again, I will PM you my details.

That one looks good, do you still have them? or it? I could try and copy the board design out, im in need of a schematic for one. Excuse my lack of knowledge, but what's a digital? Looks old and interesting.

So this was a bell module? In the loft? Looks to be in very good condition, do you take down many standard bell modules? like SAB modules?

Interesting, I understand, its easier and cheaper to buy a fully made up bell box now. Do you take many of these down? Or have any old stock of these? Would be interesting to see them. I like the fact that the internals of a bell box are on 24/7, 365 days a year, constantly for 20 years or more, never get a break. some very robust electronics.

Thanks, I have one of the "Modern Alarms" bell boxes with these in, will get a pic. Well, mine didn't false alarm at all, during light tests I did, I'm impressed. I know, looked on Google for some pics. Don't know why they couldn't be as simple as the one that I made. Those Hexagon bell boxes were such a good design, shame they changed it. The idea of a foam detector is flawed anyway, by the time it has been squirted? in it would be too late.

Does anyone have any experience with these sorts of detectors that you'd get in older bell boxes? Or know how they worked? I have just made one, using the most simple bits possible, two resistors, an LDR and a 2n2222 transistor. Did they work like that a beam of light getting interrupted, or was it more advanced? Been testing mine, and I couldn't get it to false alarm at all. Thanks, Gabs

Is this something that you designed and implemented? it is a good idea, and would reduce false alarms.

Thanks for that, well, everyone has to start somewhere. I am still looking for an idea, or something I can make, which will be an improvement to the security or electronic industry

I understand that, I definitely wouldn't want to loose money, you got any ideas or suggestions? Want to get into manufacturing

Thank you GalaxyGuy, didn't think o the ongoing support that would be needed. Starting small, I could buy internal sounder speakers, and create my own siren driver circuit put that in, and sell it as a siren with the tamper added. That may be a good start. The shed alarm idea I had I am still working on. I will look at the engineer prices, although I can image they would be high. I would like to design a PIR that can be used anywhere with no false alarms, however the problem is it couldn't be used on the standard 6 core cable configuration, or be used with any panel, e.g. Texecom Medusa PIR will work with an ADE Optima XM I could produce those bell box dummy LED modules, do you professionals use them?

If I do go into the panel ,manufacture further, ill take note of these. The chime one is good. Environmental detection inputs? I will look into this too, CSL?

I agree and even harder getting the money to do it in the first place, only thing I can think is a bank loan? However, if it was successful, it would end very well, for person starting the company and the products being made would be better.