If the shit hit the fan, what test equipment would be in your bug out bag? Lets assume you can only take what you can carry on your back... so no Tek mainframes. Also it should be water resistant, and also be able to survive EMI from a gamma ray burst, EMP, or solar flare.
I suppose it depends how one interprets "SHTF". Where I live on the west coast of the USA, the local governments are setting up teams of trained volunteers to spring into action in the event of a major earthquake. For that event, as we live in a large but weak old home: we built a 2nd home on the property and designed as if it was sitting on the worst fault in California ready to take the worse earthquake known to man. No earthquake will take it down, although we laughed when the architect, a survivor of the Vietnam war, correctly noted that maybe (house fall on top of it". He could have also said: "wood framed structures can still burn".
The most likely scenario, much more likely than the earthquakes/tsunamis that the governments are preparing for here, is a CME (Coronal Mass Ejection) or an EMP (ElecroMagnetic Pulse). It surprises me to see how casual you engineers and scientist types seem to take this. Perhaps as it is relatively easy to prepare for, yet all of you seem to simply be sitting back and will be up shit creek without a paddle when it comes. And it will come, make no mistake about that.
I read recently that a scientist studying actual Carrington type events (AKA CME or Coronal Mass Ejection - don't google "Charlemagne" style events or you'll be curled up in a ball in the closet) concluded that strictly based on the historical evidence, there is a 12% chance that in the next 10 years we have a CME. LINK TO GET YOU STARTED
https://www.exopolitics.org/impending-solar-flash-event-supported-by-scientific-studies-insider-testimony/That 12% number excludes a EMP where Kim Jong or Xi goes for a HEMP (High altitude Electro-magnetic Pulse) sneak attack. 12% that the sun/natural process's alone will do us in. That essential means that a child born today will likely (but not 100%) see his/her/its world get all of it's electronics fried in his/her's/it's lifetime.
I'd urge you to google Carrington Event and start there. It's hard to imagine a world where most of the devices we depend on are fried in a fraction of a second and instantly inoperable. OK, in regards to the OP's question: I'm not bugging out. At least, not right away. We have rain barrels off of the roofs for hundreds of gallons of water stored and multiple water filters. We live in a wet environment where any water we take will be replaced in any month except
August which might be dry, there is a river less than 1/2 a mile from me and it's full of fish, our basement has over a years worth of food stored in it and I have 10 down coats here. Should I grab a bag that would fit none of that and only perhaps a single down coat? Nope. I'm staying. My tools are here, my stuff is here.
That said, we have bought another place where the food is abundant and there are friendly neighbors. It is a 5 day walk from our home in the city, less than that if you take a bicycle. It is thick with wildlife: clams, oysters, seaweeds and literally has deer that sleep in the backyard with massive elk herds nearby. I am terraforming with native foods like Camas which is not recognizable by most folks as food. I don't doubt that we will survive either a CME or a EMP, despite what the government notes about 70-90% of Americans dying if a single EMP hits us. I have Faraday cages in both locations. Watching Dave solder with a TS80 made me realize that I could use that to scrounge for electronic components if I could have one survive the 50,000 volts or whatever the Chinese LINK TO GET YOU STARTED (
https://www.washingtonexaminer.com/washington-secrets/china-develops-weapons-to-fry-us-electric-grid-eyes-high-tech-pearl-harbor-attack)are up to these days. Here is the list of crap at the remote location which is protected and expected to survive an EMP::
Anker Solar Panel
Unknown Solar Panel/charger 60watts
Solar charger
TS80 Soldering Pen with QC3.0 wall plug and 3 extra tips (this will run off of a QC3.0 powerbank)
Radio - Tecsun PL 880
Solar Radio
Baofeng empty AA and aa battery holders 2 of each)
Baogfeng antennas - 1 is toss into the tree and 1 standard
Flashlight - shake it to light it up
Flashlight -mini
Flashlight -Thorfire VG10
4 (total) Olight USB battery chargers
Xtar PB2 Battery Charger
2 flashlights (S2 Convoy?)
Amprobe Line splitter Volt Checker
2 ea Uni-t 210B Clamp Meter
Fluke 101
2 Motorola Walkie Talkies
Baofeng 5Ra Portable Ham radio
Samsung phone with charger
EBL 9V battery charger
2ea Fluke 27/FM multimeters
1 Fluke high voltage probe
TS80 soldering pen set
Xtar VC2 Plus charger
Xtar VC4 battery charger
These items in Battery Bag on top of the garbage can ***cough***Faraday Cage*** cough** and should be checked annually or recharged
Blitzwolf QC3.0 Powerbank 10,000 Mah
Xiaomi “ “ “ “
Anker “ “ “ “
Anker “ “ “
3 ea Baofeng batteries for 5RA radio
Soshine 9V charger USA plug, with 4 ea 9V batteries
AA Batteries (@ 19). 2 in charger, 2 in plastic wrap (were not charged)
TS100 Soldering Pen plus 1 tip
Baofeng 5Ra plus battery (fully charged these batteries are 8.33. After a year in storage they drop to 8.13V)
1- EBL USB 9V charger and 2 batteries
4 - Aneng cheapo battery powered soldering pens.
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It seem to me that this group, more than any other, should be bracing and preparing for the coming storm. Even if you took a single multimeter and wrapped it up with multiple layers of tinfoil (with no batteries), you'd be so much more able to face the future. If we get lucky and it doesn't hit, we sit on a rocking chair on the front porch and drink beer while watching the deer. The foil wrapped multimeters go obsolete. Big deal.