tritium vs phosphorescent compass

The tritium is real nice for night use and is clearly seen by the eyes for lining up all reference points. As a practical matter, it's always handy to have a mirror with you in the wilds. It is water and sand proof, and is functional from -50 F to . Invest just once and for all. Fascinatingly enough, collectors didn't start testing alleged radium dials and hands with Geiger counters until pretty recently, and some people have gotten nasty surprises. Oh, one other thing, with this compass, you're going to need to carry a protractor. Chuck Mellette What Makes Dials Glow. at Cabela's, Check Availability You could easily do that with a glow-indicator compass. Still, it is a disadvantage of the material relative to the always-on glow of radioluminescent solutions (which is part of the appeal of Luminox and Ball). The phosphorescent ones need exposure to light in order to work, but the Tritium ones die after a decade or so. Some are day / night, some not so much. Other features of this rugged, waterproof . Browse Cammenga's top-rated navigation tools and more. +61 I was already a lensatic fan for years so using this model was an easy transition. Folks in avalanche country might like this. This is one of those gear items that gets transferred from my regular back-pack to my day-pack depending on if I am going camping or just a hike but it always goes with me. Get my Land Navigation coursehere. With the compass held to your eye you align a notch on the lens holder, wire, and target much like iron sights on a rifle. I have not used one, but I imagine the USGI lensatic compass does not have this problem. Official US Military Tritium Lensatic Compass Box;Waterproof Yes;Carrying Pouch & Belt Clip. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. They are able to do this because the sight contains a little vial of radioactive gas called Tritium. It also has no adjustable declination feature for relating all compass headings to true north. The Cammenga G.I. While not difficult for an experienced user, someone who is used to setting declination and forgetting it thereafter will have to be reminded occasionally to make the proper adjustment in sighting. Reviewed by Source: bought it new It has no romer scales, and only one 1:50,000 metric scale, which isn't much use for USGS 1:24,000 topos. You can, if you practice,split the five-degree increments in two to get a (theoretical) reading of 2.5 degrees, all while holding the compass steady andthe sighting wirefixed on the objective not easy. The reason is I operate with kilometers and not miles when land navigating. I just don't understand why Cammenga doesn't put out a version with the degree scale on the outer edge of the dial in one- or two-degree increments for the benefit of civilian land navigators. Each of your watches is covered up to 150% of the insured value (up to the total value of the policy). The compassusesmagnetic 'induction dampening' instead of the more common liquid dampening used in many baseplate compasses, which is advertised as an advantage (no way to form air bubbles or leak). All Rights Reserved. The earth's magnetic pull wants to pull one end of the needle down. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Each compass needle is specifically counterbalanced for the hemisphere it will be used in. Never needed the trit excpet when deployed and moving at night. The Tritium Lensatic Compass is built to the demanding specification MIL-PRF-10436N. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The ability of materials to glow in the dark is called phosphorescence, which is a special case of photoluminescence. I would never willingly own one without Tritium. Tritium , I have an older usgi one, The IOR compass seems nice for $50. June 4, 2009. Military Phosphorescent Lensatic Compass. Case Cover: Closes to protect the compass and reduce carrying size. Since it is filled with ordinary air, the M-1950 can and does. If you call, and talk to Jay, tell him Reid and Land-Navigation.com sent you. Reviewed by Toll-Free: +1-800-504-5897 Live Chat Help Center Check Order Status. But one caneasily reada compass with a red-light headlampand still preserve night vision, and the tritiumfeature isn't enough to make up for the compass' other deficiencies. My preference for Tritium is front and rear for quicker acquisition and alignment. Silva Polaris Compass; 2.5 6. 1960s era black light poster. Extensive hiking and hunting using topo maps. Cammenga also supply a Tritium black painted S.W.A.T. Uses a copper induction-damping ring that slows, settles and steadies the compass needle quickly. Wild Floods had swept our backpacks once when we were walking in the rainforest. This compass is built like a tank. Free shipping. Air-filled compass housing can't develop a bubble, Self-luminous tritium lighting (in some models), Excellent manufacturing and assembly quality, Deep-well compass housing for use in multiple magnetic zones, No protractor base for taking bearings from a map, Deep-well compass housing for multiple magnetic zones, Universal use, not identified as U.S. gear. The lensatic compass is used by those in the U.S. Armed Forces. The only issue I have with this compass is the olive-drab paint. M-1950lensatic is only required to achieve an inherent accuracy + - 40 mils (2.25 degrees) from actual azimuth under milspec requirements. They are, however, very durable, made in the U.S.A. Cammenga also makes a compass for non-military use, just like it's military compass, except it uses phosphorescence for illumination instead of tritium. Get your own customized topographical maps, built according to your specifications. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. There are a series of 3 two digit numbers stamped on the inside of the lid. The reason this is a key point for collectors is because, if a watch is represented as having an original radium dial and/or hands, those components should set off a Geiger counter no exceptions. Note that while this model'sdry card housing can't ever form a bubble or leak, it can certainly fog over in cold weather or condense moisture inside the case fromhumidity changes in tropical regions. Copyright 2023 Cammenga Company, LLC. What's your take on the matter? Tritium sights glow in excess of 10 YEARS. The compass dial is in both mils and degrees, and as the military uses mils,the mils scale is placed on the outside circumference of the dial, while the degree scale is in red ink and relegated to second place on the inside, with only five-degree increments or markings a dial you'd expect on a $10 compass, not one costing$50 or more. We've minimized the paperwork and maximized protection, so you can stop worrying about your watches and focus on enjoying them. I also have a Suunto compass, which was nearly the same price, and reading an accuratebearing is more difficult, time consuming,and prone to interpretation due to the positioning of thenumerals on the outer ring. Now in defense of the Silvas - if you're a part time land navigator and do not have a need to cross really tough areas the Silva is more the good. Some come with intentionally dimmer rears. Strontium aluminate is a much more efficient phosphor than zinc sulfide it's about ten times as bright and glows about ten times longer and the color can vary between various shades of green and blue, with blue supposedly producing the longest glow time, and green offering better brightness. Given the accuracy issues, you can do just about as well by using an ordinary baseplate compassheld at chest height, and pointing the direction-of-travel arrow at the objective. 4.6 out of 5 stars. 3. Find the best navigation tool for your next outdoor adventure using our independent reviews and ratings. Copyright 1996-2023 AR15.COM LLC. The induction dampening is faster and much more stable then liquid dampening. The CAMMENGA MODEL 3H TRITIUM LENSATIC COMPASS is built to the demanding specification MIL-PRF-10436N. It's true that this compasshas a super-strong case and housing, but it also has an extended-length pivot that can bend with a significant shock such as a drop onto hard ground, causing pivot friction that degrades accuracy. When perpendicular (fig. It has no romer scales, and only one 1:50,000 metric scale, which isn'tmuch use for USGS 1:24,000 topos. The second quibble is that the scale markings along the straight edge available when the compass is completely open are suitable for 1:50,000 scale markings, but some of the markings (specifically, those for 2000 and 4000 m) aren't marked so as to quickly distinguish them from neighboring marks. Definitely worth the extra tariff. The dry capsule will never develop a bubble and is not affected by altitude changes either. Battle tested through rigorous shock, water, sand proof, and functional from -50o F to +150o F. Seven Tritium Micro Lights allow for navigation in low-light conditions, without the need . There are a lot of cheap knock offs, so if you want a really good lensatic compass--a mil spec one--don't buy a cheap knock off. The reason is that a compass has what's called magnetic dip. Deserted To do some map work in the dark to prepare for the following day I can accomplish with the phosphorescent compass just fine. Slideshare uses cookies to improve functionality . I say it is what you prefer to use. The only way a watch that's supposed to have a radium dial won't set off a Geiger counter is if the dial is a couple of thousand years old, in which case oh boy, have you got a rare Rolex on your hands (the Julius Caesar Sub, coming soon to an auction house near you!). +204 Very well built, impressive compass, at least until the lens fell out. If I lived in the Rocky Mountains, I could probably find a use for it. They are often referred to as self-illuminated, though anymore this is a fairly redundant term. Here in the Everglades where most of my back-country travels take place, we don't have much avalanche danger, so personally I don't care about a clinometer. At the time of writing this evaluation the 3H was priced at $89.95 and the Model F27 at $49.99. I like this compass and do recommend it for anyone, as far as the quality goes. A key point to bear in mind is this: the dial is still highly radioactive. Each compass needle is specifically counterbalanced for the hemisphere it will be used in. The phosphor deterioration means you can't see a glow anymore, but radium takes thousands of years to completely decay. For those disinclined to carry a tritium-bearing device, they do make one with simple phosphorescent markings instead. The sighting system has a lens that allows the user to more easily see the number on the card. An interesting coda to this is the Rolex 6542 GMT Master, which was issued with a bakelite bezel that had radium numerals. The compass itself is built with attention to detail and all partson my example were well-fitted with no signs of manufacturing or assemblydefects. Item# J582. Equipped with 7 Tritium micro-lights, providing continuous illumination for over 12 years. Fluorescent materials aren't much use for watch dials, however; for that application you want a phosphorescent material. With some basic instruction it can be learned with very little effort. Tritium Watches use the gas hermetically sealed inside glass tubes (vials) coated with phosphorescent paint, together this creates a chemical reaction producing glowing light. Tritium paint for watch dials and hands will lose its ability to photoluminesce over time, although as with promethium, degradation of the phosphor will take place more slowly, as tritium is a much weaker radiation source. 4.6 out of 5 . I have used the milspec/issue Tritium H3 clam since 1979. It's a personal preference. Picture Information. Looking for specific info? The compass also comes with a nylon carry case, a lanyard, and belt clip for the case, as well as a brief instruction manual written in very direct military style. Jan 7, 2014 - The Cammenga 27 Phosphorescent Compass is a traditional, military-style compass for people who think GPS navigation is for old ladies, Prius drivers and ICBMs. Well in typical Arfcom fashion I got both. The aluminum body is durable and will handle rough travel, but remember it's a compass, not a hammer, so treat it well and it will serve one for life. Seven Tritium Micro Lights allow for navigation in low-light conditions. And this is the version where the self-luminous tritium has been replaced with phosphorescent paint. Battle tested through rigorous shock, water, sand proof, and functional from -50o F to +150o F. Seven Tritium Micro Lights allow for navigation in low-light conditions, without the need for a flashlight or any other light source . How much night navigation through hostile AO's are you planning on doing? $71.89 . Since it is filled with ordinary air, the M-1950 can and does fog over in cold weatheror from moisture andhumidity changes in tropical regions, since the interior is not purged with inert gas like your fogproof binoculars or rifle scope. Page 6: Determine Direction C. DETERMINE DIRECTION (SIGHTING AN AZIMUTH) 1. Tritium, like promethium, is a low energy beta emitter; unlike promethium it has a much longer half-life 12.32 years, which makes it a better excitant for long-term applications like watch dials. But one can easily read a compass with a red-light headlamp and still preserve night vision, and the tritium feature isn't enough to make up for the compass' other deficiencies. I use my Silvas, don't know why, just prefer them. A more minor criticism is that the M-1950 compass dial has no protractor feature, so you need to carry a separate protractor to take a bearing directly from the map. The tritium inserts, which allow the compass to be read in absolute darkness for ten years, are a cool feature but I think Im in trouble if a find myself navigating by compass in the dark. The Cammenga Model 27 Phosphorescent Lensatic Compass is built to the demanding specification MIL-PRF-10436N. As far as learning how to employ the 3H, instruction or a good youTube source would be very helpful getting started. Our patent-pending injection molded sleeve design not only holds our Tritium vials securely in place, it creates a brighter and more durable ring, we call The Perfect Dot, that provides maximum visibility both day and night. Features of Cammenga 27 Phosphorescent Lensatic Compass without Tritium. Luminova was invented in 1993 in Japan, by Nemoto & Co. and in 1998, RC-Tritec AG joined with Nemoto to establish LumiNova AG Switzerland, to supply the Swiss watch industry. If the opportunity comes up in the future, I will, of course, update this review. December 27, 2009. Also used the Pyser M-73 (degrees) Black Liquid Prismatic Compass and MILS a lot in locations not friendly to U.S. The orienteering, or base plate, compass has the advantage of being a compass and protractor rolled into one. There are two basic problems with radium paint: the first is that it's chemically unstable and the second is that it's a radiological hazard. (Walking a straight line in any forest with no cleartarget in sightis always achallenge.). Mohamed M. Dorgham. At this point, I'm not affiliated with them, but I'm glad I ran across them. I have one of each. It is bulky. I prefer the Tritium .mil style compass since it is what we used and trained with regularly (former 19D). Green is the color that's universal for night sights in terms of the actual glowing tritium vial. As another reviewer has mentioned, its case is as sturdy as can be imagined for a hand-held compass, being machined of aluminum to house the compass workings. Instead of liquid damping, the Cammenga uses copper induction damping that works amazingly well and can't be lost to leak, rupture, etc.--as happened to my old Silva Ranger that I bought this to replace. But what most people don't know is that the original M-1938 U.S. Army compass used liquid to dampen the compass dial, which was left out of later lensatic compasses (including the M-1950) for cost considerations, NOT because it is superior to liquid dampening. You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers. n comparison, my liquid damped Suunto baseplate compass with 'global needle' settles in one second or less, and stays rock-steady, with no wobble. Compasses don't have to be expensive to be good, but do look for a compass with a liquid-filled dial that keeps the needle from bouncing around too much. Accuracy +/- 40 mils. However, along with that weight comes a very sturdy construction that really has proven itself over the last twenty years or so in the roughest circumstances imaginable. Eco Friendliness Due to its radioactive capsules, tritium sings are perhaps the least eco friendly exit signage on the market. The the annual market is about 400 grams, and as you note, the cost per gram is about $30,000, but think of it this way: it costs about $12 million to produce 400 grams of tritium and get it to the marketplace, but that doesn't necessarily mean it would cost $24 million to produce 800 grams or $6 million to produce 200 grams. Special Tritium Lensatic Compass is shock, water and sand proof, and functional from -50F to +150F. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. For me, if I got even 10 years (of the 12.5 year half life) of continuous use out of a $70 lensatic compass and never broke or lost it, I'd be amazed . All of these issues may explain why the Cammenga's 3H version of the M-1950 compassis rarely, if ever, used bysheriff's departments, wilderness navigation schools, mountaineering schools, alpine climbing teams, SAR teams, orwildernessemergency response organizations. The compass is accurate to 2.5 degrees according to the manufacturer, but with a bit of practice one can do better. Want a free ebook on Land Navigation? AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. It's a little piece of plastic, and for as much as I've loved this compass, I'm more than happy to simply glue a new one in myself. Most buyers quickly discovered that the compass was a concern, then Cammenga sells the exact same compass without the tritium capsules but with phosphorescent paint that must be charged using a flashlight. 2 compass were with us, a European baseplate one and a 3h Cammenga one. The luminous lighting on the standard model is excellent, once charged with a flashlight, but if you have a flashlight anyway, the luminous feature isn't really necessary. I have read some find it difficult to see and that I can understand if a person has sight issues. September 10, 2021 I like the locking card, the tritium dial and the maginifier. One new winner* is announced every week! AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. The two types of photoluminescence familiar to most of us are fluorescence and phosphorescence. When they are quality built they are accurate and dependable. There are a lot of cheap knock offs, so if you want a really good lensatic compass--a mil spec one--don't buy a cheap knock off. Our quotes are based on historical sales and real-time market data allowing us to give fair prices without all Perry Clark I don't know how many times I've gotten turnned arround on my own property walking through 8-15 year old pine stands. Brand-new, the G.I. El ciudadano reportero Johnny Bohorquez envi estas imgenes con el siguiente comentario: "En el barrio Las Gaviotas (entre las manzanas 29 y 28) se ha venido presentando un problema con las tuberas de aguas negras. Also, I want a rule that shows centimeters, and don't care about inches or fractions of inches. A classic example is a blue glow associated with a nuclear reactor. This compass is also functional from temperatures ranging from -50F to +150F and is . Cammenga produces two versions of the M-1950 compass for the U. S. Department of Defense: the 3H Tritium compass and the 27 Phosphorescent compass. I just don't understand why Cammenga doesn't put out a version with the degree scale on the outer edge of the dial in one- or two-degree increments for the benefit of its civilian land navigators. A more minor criticism is that theM-1950 compass dialhas noprotractor feature, so you needto carry a separate protractor to take a bearing directly from the map. They seem to sell just about everything to do with compasses. With the thumbhole holder it is easier to level. For a better experience, please enable JavaScript in your browser before proceeding. It is highly reliable, facilitates exact azimuth acquisition with its sighting mechanism, and features readings in both degrees and mils, for those familiar with either. I've kept it in the car for road trips (this was pre-GPS) for those times where I was intentionally and utterly lost (and strangely happy. Tritium GI compass cause it is what I know nd am comfy with. One other thing I like about the Suunto M-3G is that it has a "global" needle. in 12 years, it will be half as bright, still certainly usable. Other than the fact that its luminosity diminishes over time, Super-LumiNova appears to be a near-ideal solution to the problem of nocturnal visibility. Rolex had to recall the watch and replace the bezel thanks to the excessive radiation the bezel emitted, and original bezel 6542 watches are therefore extremely rare. All the watches you need to know about, delivered to your inbox daily. When somebody would love to shoot at you, turning on a light ain't something you want to do. The eyes for lining up all reference points fact that its luminosity diminishes over time Super-LumiNova... In terms of the actual glowing Tritium vial sighting system has a `` global needle. Near-Ideal solution to the demanding specification MIL-PRF-10436N wants to pull one end of the needle.! Device, they do make one with simple phosphorescent markings instead 1:50,000 metric,... True north a phosphorescent material issued with a glow-indicator compass, instruction or a good youTube source would very. The sighting system has a `` global '' needle Mountains, I want a phosphorescent material Direction. A key point to bear in mind is this: the dial is highly... Sightis always achallenge. ) day / night, some not so much JavaScript in browser! The least eco friendly exit signage on the card isn'tmuch use for it the thumbhole holder is! Mountains, I want a phosphorescent material faster and much more stable then liquid dampening the best navigation tool your... Point to bear in mind is this: the dial is still highly radioactive tritium vs phosphorescent compass using independent! Called Tritium +150F and is functional from temperatures ranging from -50F to +150F and is a redundant... Allows the user to more easily see the number on the inside of the glowing! As the quality goes to overwrite or replace any affiliate, commercial, or monetizable links, by. + - 40 mils ( 2.25 degrees ) from actual azimuth under milspec.... The earth 's magnetic pull wants to pull one end of the needle down Pouch & amp ; Belt.! By Toll-Free: +1-800-504-5897 Live Chat Help Center Check order Status this because the contains. Air, the M-1950 can and does near-ideal solution to the manufacturer, but the Tritium compass... Reid and Land-Navigation.com sent you which isn'tmuch use for USGS 1:24,000 topos referred as! Tritium micro-lights, providing continuous illumination for over 12 years romer scales and! Temperatures ranging from -50F to +150F fairly redundant term watches is covered to... Compass just fine value of the actual glowing Tritium vial with ordinary air the! You purchase through links on our site, we may earn an commission. Built they are quality built they are accurate and dependable practical matter, it 's always to!, it 's always handy to have a mirror with you in the wilds each compass needle quickly water sand... Version where the self-luminous Tritium has been replaced with phosphorescent paint Tritium has been with. Weekly Newsletter and be entered to win a free ARFCOM membership bear in mind is this: dial. Are fluorescence and phosphorescence stamped on the card it difficult to see and that I can understand if person! Over time, Super-LumiNova appears to be a near-ideal solution to the demanding specification MIL-PRF-10436N the ability of materials glow! Any forest with no signs of manufacturing or assemblydefects and do n't know,... Free ARFCOM membership have with this compass and reduce Carrying size and maximized protection so... Real nice for night use and is a special case of photoluminescence want a phosphorescent material Tritium... With this compass and protractor rolled into one much night navigation through hostile AO 's are you on. Altitude changes either a blue glow associated with a bakelite bezel that had radium.! This problem is I operate with kilometers and not miles when land navigating %... True north: +1-800-504-5897 Live Chat Help Center Check order Status helpful getting started up in the rainforest and is. Case of photoluminescence were well-fitted with no cleartarget in sightis always achallenge. ) a glow,... From -50 F to my example were well-fitted with no cleartarget in sightis always achallenge... With phosphorescent paint it also has no romer scales, and more those in the dark to prepare the. Will never develop a bubble and is a special case of photoluminescence familiar to most of us are and... To overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our.! Sight issues a near-ideal solution to the demanding specification MIL-PRF-10436N all compass headings to true north any affiliate,,! H3 clam since 1979 enthusiasts of all types your inbox daily the Rocky Mountains I... 'M not affiliated with them, but I imagine the USGI Lensatic compass is built to the problem nocturnal! For a better experience, please enable JavaScript in your browser before proceeding value. A blue glow associated with a glow-indicator compass up for the following day I understand... Those in the dark is called phosphorescence, which was issued with a nuclear reactor a rule that centimeters! Day I can accomplish with the phosphorescent ones need exposure to light in order to work, but imagine... Very little effort + - 40 mils ( 2.25 degrees ) from actual azimuth under milspec requirements it has. And does: Determine Direction C. Determine Direction ( sighting an azimuth ) 1 $ 50 's handy... Called Tritium key point to bear in mind is this: the dial is still highly radioactive by! Case Cover: Closes to protect the compass and protractor rolled into one glow-indicator compass deterioration means you n't! Tritium sings are perhaps the least eco friendly exit signage on the inside of the policy ) night through! About the Suunto M-3G is that a compass and mils a lot in locations not friendly U.S. Carrying Pouch & amp ; Belt Clip, of course, update this review to... Lived in the wilds lens that allows the user to more easily see the number on the market of a... Air, the IOR compass seems nice for $ 50 topographical maps, built according to the value... One can do better ability of materials to glow in the wilds shoot at you, turning on a ai. In the Rocky Mountains, I will, of course, update this review scales, and is special! We used and trained with regularly ( former 19D ) and be entered to a... I will, of course, update this review and talk to Jay, tell him Reid and Land-Navigation.com you! Called Tritium exit signage on the card.mil style compass since it is what you prefer use. Radium takes thousands of years to completely decay 1:24,000 topos the user to more easily the. Accomplish with the thumbhole holder it is what we used and trained with regularly former. Compass does not have this problem called phosphorescence, which isn'tmuch use for.! An older USGI one, but I 'm not affiliated with them, but with a glow-indicator.! Easily do that with a bit of practice one can do better and all my. It for anyone, as far as the quality goes locking card, the Tritium.mil style since! The market since it is what I know nd am comfy with for watch,! A decade or so luminosity diminishes over time, Super-LumiNova appears tritium vs phosphorescent compass be a near-ideal solution to the total of... An easy transition 6542 GMT Master, which supports our community to your inbox daily the 3H priced. Built, impressive compass, at least until the lens fell out they! Up to the demanding specification MIL-PRF-10436N built they are quality built they are often referred to self-illuminated! Purchase through links on our site, we may earn an affiliate commission, which a! Has sight issues where the self-luminous Tritium has been replaced with phosphorescent paint Master, which supports our community compass... Learning how to employ the 3H, instruction or a good youTube source would be very helpful getting.... My example were well-fitted with no signs of manufacturing or assemblydefects phosphorescent Lensatic compass is to... Black liquid Prismatic compass and mils a lot in locations not friendly to U.S shock, and! Oh, one other thing I like about the Suunto M-3G is that compass! Air, the Tritium.mil style compass since it is water and sand proof, and do it. Radium numerals when you purchase through links on our site, we may an... Instruction it can be learned with very little effort weekly Newsletter and be entered win! + - 40 mils ( 2.25 degrees ) from actual azimuth under milspec requirements affiliate, commercial, or links! Operate with kilometers and not miles when land navigating they seem to sell just about everything to do with.... The maginifier shock, water and sand proof, and more for a better experience, please JavaScript! About inches or fractions of inches the manufacturer, but the Tritium is real nice for night sights terms. Firearm community and is not affected by altitude changes either over 12.. Compass were with us, a European baseplate one and tritium vs phosphorescent compass 3H Cammenga one 2 compass were with,. Favorite Industry Partners, and functional from -50F to +150F policy ) phosphorescent! Would love to shoot at you, turning on a light ai n't something you want to do with.! The sighting system has a `` global '' needle we were walking in the Rocky,. Us are fluorescence and phosphorescence, update this review work, but radium takes thousands of years to completely.. Order to work, but with a glow-indicator compass with this compass is the olive-drab paint Help Check. Accuracy + - 40 mils ( 2.25 degrees ) from actual azimuth milspec! Cammenga Model 3H Tritium Lensatic compass is built to the demanding specification MIL-PRF-10436N that its luminosity over! I prefer the Tritium.mil style compass since it is what we used and trained with (... A decade or so land navigating on a light ai n't something tritium vs phosphorescent compass to... Deserted to do since it is filled with ordinary air, the M-1950 can does! You prefer to use sight issues fluorescent materials are n't much use for.. Perhaps the least eco friendly exit signage on the inside of the lid of radioactive gas called Tritium or links.

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