Best industrial warning alarms according to redditors
We found 4 Reddit comments discussing the best industrial warning alarms. We ranked the 4 resulting products by number of redditors who mentioned them. Here are the top 20.
We found 4 Reddit comments discussing the best industrial warning alarms. We ranked the 4 resulting products by number of redditors who mentioned them. Here are the top 20.
The concentration will depend on a large number of factors including the air temperature and flow through the gap, the corona voltage/current/frequency, the room ventilation, and the electrode geometry. If the ozone is strong enough to smell, you should have a meter. They run about $500+.
The odor threshold is about a factor of 10 less than the OSHA limit (0.01 ppm vs. 0.1 ppm).
Get a meter and ensure you have as much ventilation as possible. I have personal experience with ozone poisoning from a hobby project in an enclosed space before I knew of the dangers, it's no joke.
What about these ones?
https://www.amazon.com/UHPPOTE-9-28VDC-Conventional-Manual-Emergency/dp/B01NGYTFAS/ref=sr_1_1?ie=UTF8&qid=1488041171&sr=8-1&keywords=fire+alarm+switch
https://www.amazon.com/Potter-RMS-2T-Emergency-Manual-Station/dp/B003Y00EKY/ref=sr_1_8?ie=UTF8&qid=1488041171&sr=8-8&keywords=fire+alarm+switch
I maintain a few hundred of these locks for the school district I work for. I strongly recommend a couple things. First, get the DB9 type serial programming cable rather than the USB one, they're just more reliable. Even if your machine running DL-Windows doesn't have an old timey serial port, a separate USB-to-DB9 adapter is way cheaper to replace if it craps out than the custom Alarm Lock USB all in one. Second, I strongly recommend picking up a Data Transfer Module for programming the locks. It not only conveniently comes with a CDROM with DL-Windows, It's also a lot easier to deal with than struggling with balancing a laptop with DL-Windows in one hand while punching in the programming code with the other. Pay no mind to the reviews on Amazon, they're the result of people struggling with DL-Windows rather than any shortcoming of the DTM.
Be prepared for a rather steep learning curve dealing with the idiosyncracies of DL-Windows. The software is basically the same interface as it was when it was introduced like 25 years ago, they've just kept adding more menus and buttons to handle additional features. I think the idea is that old timer locksmiths don't have to learn a new program.
Also, your 26 bit 125khz fobs with work just fine. All you need to do is type in the facility code and id code.
Feel free to message me or post here with DL-Windows or Alarm Lock questions.
It's an alarm controller.
Likely provided cellular connectivity to a home alarm system so you couldn't disable the unit by cutting the phone lines.