Any idea? DMP Security

A community of low voltage technicians, business owners, and hobbyists that can talk about all types of LV (e.g., Fiber, CAT, AV, Access, Fire, Burg, PLC, IT, and everything else).
Any idea why this is happening? DMP Security

Reddit's International Fire Alarm Technicians Sub
Is this copper gonna shock me if I touch it?
Welcome to /r/AskElectricians. To get verified, send a photo to the mods that has your certificate/seal/card. In this photo, have a piece of paper with your username and date written on it. Block out all identifying information. Once verified delete the image. If the instructions are not followed exactly, the request will be ignored.
Exposed Copper
Welcome to /r/Electricians Reddit's International Electrical Worker Community aka The Great Reddit Council of Electricians Talk shop, show off pictures of your work, and ask code related questions. Help your fellow Redditors crack the electrical code.
Wire Strippers - Which is Best
This sub is for tool enthusiasts worldwide to talk about tools, professionals and hobbyists alike. We welcome posts about "new tool day", estate sale/car boot sale finds, "what is this" tool, advice about the best tool for a job, homemade tools, 3D printed accessories, toolbox/shop tours. NSFW content will get you banned. Promotions and ads are not permitted on this sub. NO comments/posts related to politics. We welcome visitors/DIYers asking questions about which tools to use.
EOS R10 AF not working
Welcome to reddit's home for discussion of the Canon mirrorless, DSLR, and analogue camera systems and lenses. Whether you use RF/-S, EF/-S, EF-M, FD, or even their point-and-shoot systems, you'll be in like-minded company here. Canon printers are also allowed, just not as common. All questions and photographic experience levels welcome; please read the posting guidelines first if you are new!
Engine Swap
For anyone interested in the Toyota GR86 & Subaru BRZ ('22+).
JCI Technician
Reddit's International Fire Alarm Technicians Sub
Is this a tick, or a bed bug?
A subreddit all about insects and other bugs. ID requests, artwork, macro-photography, discussion, and more! **ALL ID requests require a geographic location!**
Emergency Leave
A place for railroad professionals to gather and discuss their respective crafts, the industry, etc. Rail fans, train buffs and hobbyist are more than welcome to ask questions and participate in discussion. No model trains or railfan videos please. These will be removed. No spamming sales. If you have questions about how to get hired, what the pay, job or hiring process is like, please use weekly thread. Your post will be removed if it's obvious you haven't tried reading from others first.
Rookie Mistake 💀
Reddit's International Fire Alarm Technicians Sub
Relay Wires
Reddit's International Fire Alarm Technicians Sub
Florida East Coast
A place for railroad professionals to gather and discuss their respective crafts, the industry, etc. Rail fans, train buffs and hobbyist are more than welcome to ask questions and participate in discussion. No model trains or railfan videos please. These will be removed. No spamming sales. If you have questions about how to get hired, what the pay, job or hiring process is like, please use weekly thread. Your post will be removed if it's obvious you haven't tried reading from others first.
FEC Work Life
A place for railroad professionals to gather and discuss their respective crafts, the industry, etc. Rail fans, train buffs and hobbyist are more than welcome to ask questions and participate in discussion. No model trains or railfan videos please. These will be removed. No spamming sales. If you have questions about how to get hired, what the pay, job or hiring process is like, please use weekly thread. Your post will be removed if it's obvious you haven't tried reading from others first.
Edward’s Panel

Reddit's International Fire Alarm Technicians Sub
Engineer to Engineer
A place for railroad professionals to gather and discuss their respective crafts, the industry, etc. Rail fans, train buffs and hobbyist are more than welcome to ask questions and participate in discussion. No model trains or railfan videos please. These will be removed. No spamming sales. If you have questions about how to get hired, what the pay, job or hiring process is like, please use weekly thread. Your post will be removed if it's obvious you haven't tried reading from others first.
Faraday RDC-1 Key
Reddit's International Fire Alarm Technicians Sub
Best Class 1
A place for railroad professionals to gather and discuss their respective crafts, the industry, etc. Rail fans, train buffs and hobbyist are more than welcome to ask questions and participate in discussion. No model trains or railfan videos please. These will be removed. No spamming sales. If you have questions about how to get hired, what the pay, job or hiring process is like, please use weekly thread. Your post will be removed if it's obvious you haven't tried reading from others first.
MOW Job Title
A place for railroad professionals to gather and discuss their respective crafts, the industry, etc. Rail fans, train buffs and hobbyist are more than welcome to ask questions and participate in discussion. No model trains or railfan videos please. These will be removed. No spamming sales. If you have questions about how to get hired, what the pay, job or hiring process is like, please use weekly thread. Your post will be removed if it's obvious you haven't tried reading from others first.
Railcar Mechanic
A place for railroad professionals to gather and discuss their respective crafts, the industry, etc. Rail fans, train buffs and hobbyist are more than welcome to ask questions and participate in discussion. No model trains or railfan videos please. These will be removed. No spamming sales. If you have questions about how to get hired, what the pay, job or hiring process is like, please use weekly thread. Your post will be removed if it's obvious you haven't tried reading from others first.
What does this cable do?
This is a sub for Pc-Building enthusiasts, where you can get and give help about anything! (Questions, Budgets, Pablo, etc.)
Is this a 4050-80?
Reddit's International Fire Alarm Technicians Sub
Noob Question
Reddit's International Fire Alarm Technicians Sub
Best AM4 CPU (GTX 1080)
Planning on building a computer but need some advice? This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. Anyone is welcome to seek the input of our helpful community as they piece together their desktop.
Anyone know what PC case this is?

This subreddit is for general discussion of computers.