First closest answer gets one of my 2020 bikini calendars.
Storage bin for dosimeters (measure radiation)
I want to guess but the calendar scares me (no offense intended).... I know you guys are pretty good natured
Truth, I have no idea what they are.
Tricorders , "Beam me up Scottie "
I believe that @John Underwood is pretty close. The appear to be Radon detectors. Specifically Single Gas Detector. They can be used for various things like hydrogen sulfide.
They are in a basket which hold stuff, on a counter where you set stuff, just before using the hand sanitizer to clean your hands. :)
Multi gas meter for making sure an environment is safe while in a confined space. I think that hand sanitizer is what Paul uses after he looks at his calendars!!!
Drug test machines. I'm only guessing because you talk about them often. or ghost detectors
@Michael Baum @Brendan Curley are both correct. They are called "sniffers". They detect Hydrogen Sulfide gas. The gas is a by product of petroleum refining. One breath can kill a person. Even in dilute quantities, one sniff will render a person unable to smell the gas and they can succumb in a minute or two.
All my tenants wear these, and some of them leave them behind in their STR.
So what is my purpose for keeping 3 of them in a basket?
You want to see if they have children
or it's a sniffer lost and found
@Paul Sandhu H2S monitor! I used to work in a oil & gas processing plant and had to wear one. I’m guessing you have them in case your tenants lose their’s. I used to always misplace mine and they are not cheap if you have to pay for them out of your pocket.
That’s your “welcome basket” for refinery workers. Plus a case of beer.
That basket is where contractors empty their pockets before taking a pre-access drug screen to get into the refinery. A lot of contractors have never been in this town. The H2S monitors are a conversation starter towards the STRs that I rent out. They say "Did someone leave those behind?" I say "They left them behind in one of my 23 houses. I have 1500 regular people that stay in my houses when they come here to work. It might be 4 weeks, 4 months or 4 years before they come back. They get their monitor when they come back. Why are you paying more money to stay in a dinky motel room when you can spend less to stay in a house where you can cook and do laundry?" Then I give them a pen or calendar. Tell them I have no vacancy right now but to call me the next time they come here to work.