TEC Accessories Isotope S323 - Stainless Steel Lantern Design Housing for 3 mm x 23 mm Glass Tritium Vial (Not Included) - Everyday Carry Tritium Keychain Accessory - Cool Keychains Accessories

This tiny little keyfob is well made and very durable. It does an excellent job protecting the vial held inside it. I'm pretty rough with my keys, tossing them on tables, dropping them, swinging them around in my hand--even though all that, this fob protects the vial inside just fine. And it looks nice to boot. This fob takes a 3mm x 22.5mm vial, and the fit is perfect. Note that the fob comes with two rubber pads plus a keyring. The two rubber pads do not mean you get one extra! Use both by placing one in the bottom of the fob before you insert your vial, then use either the vial itself or something like a coffee stirring rod to push the rubber piece down. Insert your fob, then squeeze in the second rubber pad and push it down. There will be enough clearance between the keyring hole and the top of the rubber pad for the keyring to go in on top of the pad, keeping everything in place unless you remove the keyring. If you need to remove anything, you'll need to remove the ring, then use a very fine tool to push up from the bottom on the bottom rubber pad. This will force all the bits up and out. 12/30/2015 Edit: 6 months and still good as new. Durable little thing.

Fit and finish are fantastic. Holds a 3x22.5mm vial perfectly. Mine also shipped with two rings and three small rubber plugs to ensure the vial does not float freely back and forth within the fob. I only needed to use one of the rubber plugs (and one ring, obviously), but I am a big fan of vendors who provide extra components. I have dropped my keys and the vial has been fine. I also don't see how the fob would flex very easily, but granted, it's not a solid cylinder wall due to the cutouts, so I suppose with force it would flex. I just don't subject my keys to that much abuse. ;) In general, I am extremely satisfied with every aspect of this product except its price. $19.99 seems to be the point beyond which this seems fairly pricey, especially when one considers you also need to drop $20 on a vial. Oh well, you can pay less for lesser quality. I decided not to cheap out. BTW, with regards to the vials, green is definitely the brightest, but don't believe claims of "daylight bright". Not given the size of the vial. I have purchased green vials from multiple sources and their brightness is all about the same, which is a pleasant glow in darker lighting conditions.

Out of a few options available on Amazon, this one seems best suited for a necklace. If you need something tougher, opt for titanium. Pros: This fob is very compact compared to some bulky titanium options. It has as many openings for the tritium vial to shine through as possible without compromising strength (too much). It has a lovely polished finish. Your vial just barely fits in the tube and will not bang around, especially if you can fit the tiny rubber plugs at both ends. Cons: Due to its compact design and number of cutouts you can bend this fob with your fingers. Don't try that after inserting the tritium vial! This fob probably won't protect the vial from cracking if carried on a key chain in your pocket.

ok lets get this out there now. this thing is small and kinda pricey for it's size. but the price is what it is, and I cant score it down for it. I chose to buy so that's on me. as for the product, well this little tritium vial holder is one tough and well made piece. the machining is excellent. it's sharply cut, but without any rough edges. it doesn't bend easy, and feels really good to the touch. i really have no complaints.

Looks cool and has a great finish, but this thing is NOT strong or sturdy--it bends very easily, and my vial broke within a few weeks. I kept mine on a keychain in my pocket and in a bag, but nothing extreme or abusive. It bends VERY easily with very little pressure, even from your hands. Unfortunately it is of poor quality, and when you pay what they're asking for for such a tiny piece, you expect it not to break the vial it claims to protect. Really disappointed. Avoid if you want to actually take this anywhere.

There's nothing wrong with this. Nothing at all. I give it three stars because: 1) Price!!! Who cares if it's titanium or robidium or whatever. It's a tiny mass of metal intended to hold a tritium vial which, as far as I can tell, *isn't illegal*. They're hard to buy source within the USA. I source from Taiwan and am very happy. But, TEC, WTF? 2) TEC: WTF??? Yeah, it's cool! I dig it! But $20+ and no tritium and no prime? What an I paying for? I work for a very small company, as yours likely is, so I understand that side... but $20+ for--and you know this is not paraphrasing, but the same meat as your description--"it's made of this badass metal; there's not much of it but it's super light and strong... you could forget it's there! But you're on your own to find something good to jam in it so that it actually does something, like create self-sustaining illumination as the ad indicates"--WTF, dudes? I dig your s***, have and will continue to buy it... but there's a screw loose: maybe you're a startup doing unique things that I don't understand (... so do a fouling press release!), or maybe you're complacent and--this isn't bad by itself, or at all given your non-public structure and data--you just like guys like me who like outfits like you. I don't like your pricing, but your style sort of normalizes things, so I dig it. I just don't get it. Maybe I'll make a company that makes similar products at half the price... that tiny volume of metal... titanium is just cool. Its core physical properties which make it desirable coupled with the relative increased price per unit (or loss per consumer per buy) thereof compared to, say, steel (which, to whomever may not know, is a medicine of mostly iron and then some carbon, the specific properties of each being tweaked per buy) is a mystery to me. I'll give you this: titanium is cool. But if you used stainless, what would you not deliver to your customer given your costs would be much less, so even halving you price would increase your margin significantly, perhaps by an order of magnitude? Help a brother out. I love your s*** and I gift it too. But what's with the materials and pricing?

A very nice holder for your Tritium vials. I purchased tritium separately so I could add it to my Isotope myself. However keep in mind to measure the holder to ensure you are not disappointed when it arrives. Typically tritium vials are very small so be sure to read the specs. Also be sure if you order tritium to read the measurements to ensure it fits your holder. I would order again.

Kinda pricey but you get a lot for your money. It is pretty sturdy, well made, and plenty of accessories to keep your tritium vial well protected.

Very solid little fob. Seems to be very well crafted.

Measuring the radioactivity output of this fob results in about 1.3µSv/h, which is a good 13x or more of background radiation here where I am (in eastern Canada.). This easily penetrates multiple layers of clothing. Tritium radiates beta radiation—NOT alpha. Therefore, it requires significant shielding to make it biologically safe. I had assumed there was an internal shield of some kind of plastic in the fob based on photographs of same but.. Yeah no. There isn't. Therefore, any significant jarring or incursion of anything hard (like say steel keys) of any sort will break the tritium vial within this fob and the tritium gas is *technically* hazmat-response kind of thing. I was really hoping TEC's professionalism implied the fob is safe. I'm pretty sure it isn't. But darn it. It's so pretty.

Solid construction