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  1. C

    Career guidance advice please

    You aren't giving us much to work on, for this kind of question. You mention that you have "two job offers in the USA", which would make me think you're immigrating from another country, but your profile indicates you're already in the USA. In any case, it sounds like you're moving to whichever...
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    Wireless key fob and USB receiver. Advice sought

    As I noted before, my real expertise is with alarm systems, but I have more than a nodding acquaintance with Access Control systems; and I'm pretty sure that commercial companies do offer what Ray needs, but it's not cheap. Access Control usually costs more than alarm systems. Even most...
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    ADT Safewatch 3000 system

    Forgot to mention: I wrote most of this from memory, but I checked the programming guide again and I think I was wrong about suppressing the "Chime" option. You'll still be able to use the Chime feature if you want.
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    ADT Safewatch 3000 system

    Okay, first thing you need to do is get into Panel Programming. At the keypad, enter your [4-digit Installer Code] + [8] + [00]. I'm just kidding: That's the easy way to get into panel programming, but chances are about 99% that you don't know your Installer Code. Fortunately, Honeywell...
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    ADT Safewatch 3000 system

    The ADT Safewatch 3000 is ADT's version of Honeywell's Vista-20P Control Panel (usually called just "The Panel", and not to be confused with the Keypad(s), which are probably model(s) 6150 and/or 6160. The Panel is slightly modified for ADT, but not in any way pertinant to your question. When...
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    ULTRAK MA-850

    I think that's one of the shock/glassbreak sensor-analyzer systems I used to work with back in the '80's, although TBH, I can't remember that particular model number or particulars about it. Good luck finding the documentation for it. It was in use before the internet was even fledgling...
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    networx nx6

    By some quirk of fate, I never had occasion to work with any of the Networx panels, but this is a not-uncommon problem with most professional-grade alarm panels: There is a setting in panel programming that allows the User to arm the system without using the code (Quick-Arm feature)---which...
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    Heat shrink as water insulator

    I don't think much of this guy's method of "estimating conductivity". Working with a setup that makes it that easy to short out a lead-acid battery is freaking dangerous. He might at least have stuck some low-resistance current-limiting device in the circuit, at a battery electrode, so any...
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    Ademco vista Honeywell Alarm 20p with a 6160 keypad

    TRizzi, I’ve looked at your threads in the home security systems section of doityourself-dot-com and in the Honeywell and Ademco section of shieldlab-dot-com, and in both of those you gave a more thorough explanation of your situation that made it easier to analyze and advise about your problem...
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    Ademco Vista Honeywell Alarm 20p

    TRizzi, it really helps me understand a post if it has standard punctuation, so I don't have to go over it several times to separate out the sentences and phrases to see what goes together. Here's how I interpreted your post: I have 3 FA215 keypads and I would like to upgrade at least one. if...
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    Capacitor charging itself?

    Okay, took me awhile, but I think I've got it. Hold the capacitor by its negative lead and walk across a thick carpet in a low-humidiy room, then touch the positive capacitor lead to the doorknob. Touching it to one of the screws holding on the light switch panel is even better. Repeat until...
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    Ir break beam help

    You say that "nothing is happening" when you break the beam. What happens when you first energize the beam? Have you verified that the receiver relay switches state when when it receives a beam from the transmitter? If the relay doesn't energize in the first place, then "nothing will happen"...
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    12 vdc to 6 vdc input stability

    Wow, a motor-driven siren really IS vintage. I've been working with sirens for decades and only remember coming across one system that used a motor-driven, more than 25 years ago. It was ancient at the time. I endorse BobK's suggestion, with the recommendation of powering the 6V charger from...
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    Keyless and contactless Reset switch

    Oh. Knock yourself out. :)
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    Keyless and contactless Reset switch

    ??
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    Electronics Mortuary

    Obviously a stuck safety release valve and high-pressure build-up of magic smoke.
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    Keyless and contactless Reset switch

    Be aware that if you're going to carry a strong magnet on your person, you need to keep it well away from any credit-type cards that still use a magnetic strip---a magnet will scramble and render that magnet strip unreadable. Also, take care not to hold it against any wrist/pocket watch with...
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    DIY Electric Shocking Mouse/Rat Trap

    I decided to add one more caveat here about using electrocution devices. You mentioned this is for a barn, so there are other critters than mice and rats that can wander into/across/over whatever device you use. Given that you have an abundance of mice, there are unquestionably a number of...
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    DIY Electric Shocking Mouse/Rat Trap

    If you want to watch demonstrations of multiple mice being caught, search "DIY Mouse Trap" or "Bucket mouse trap" on YouTube. Not all will show a demo at the end, so I skip ahead in the video. There are a plethora of videos of self-resetting traps catching multiple mice overnight, and you could...
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    DIY Electric Shocking Mouse/Rat Trap

    Citation? I.e., can you give us a link to some documentation about that? It has the odor of an urban myth. In a quick search, I did find evidence that rat urine (or any strong rat smell) will tend to scare away mice, which makes sense because rats prey on mice. Which might make a good case...
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