Cammenga Tritium Lensatic Compass with Case
The Cammenga Model 3H Tritium Lensatic Compass is the official U.S. Military issue compass and the standard against which all field compasses are measured. Seven self-powered tritium micro lights illuminate the dial, sighting wire, and bezel for navigation in total darkness — no batteries, no charging, no glow stick required. A cast aluminum frame, copper induction damping, and sapphire jewel bearing make it shockproof, sandproof, waterproof, and accurate from -50°F to +150°F. Ships complete with LC-1 belt pouch, lanyard, and instruction card. Built for soldiers, land navigators, SAR teams, hunters, and serious backcountry travelers who need a compass that always works.
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- SKU
- CG3H
$131.75
Description
Features
- Official U.S. Military Issue — The Model 3H is the genuine GI-issue lensatic compass built to U.S. Armed Forces specifications under NSN 6605-01-196-6971.
- Seven Tritium Micro Lights — Self-powered tritium illumination at cardinal points, sighting wire, and bezel allows low-light navigation with no batteries or recharging.
- 10-Year Luminous Life — Tritium-activated phosphor elements glow continuously for roughly a decade without any external light source.
- Cast Aluminum Frame — Ruggedized aluminum housing is shockproof, sandproof, and waterproof for hard use in the field.
- Copper Induction Damping — Liquid-free induction damping slows magnet rotation for fast, accurate readings without the freezing or leaking issues of fluid-filled compasses.
- Extreme Temperature Range — Rated for reliable operation from -50°F to +150°F (-45°C to +65°C) in arctic, desert, and jungle environments.
- Degrees and Mils Dial — Graduated in both degrees and mils with a sapphire jewel bearing for ±40 mil accuracy and smooth dial movement.
- Magnifying Lens and Sight Wire — Built-in lens magnifies the dial while the sighting wire and rear sight allow precise azimuth shots on distant landmarks.
- Complete Field Kit — Ships with LC-1 carrying pouch with belt clip, lanyard, and instruction card ready for pack or load-bearing gear.
- Made in the USA — Manufactured by Cammenga, the world's largest producer of military compasses and sole supplier to the U.S. military.
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Customer Reviews
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Top customer reviews
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The Real Deal Exactly What We Carried DownrangeI ran one of these in the sandbox and later in the mountains of eastern Afghanistan, and when mine finally went missing during a PCS move I came straight here to replace it. This is the genuine Cammenga 3H, built to MIL-PRF-10436N you can see the contract info and NSN 6605-01-196-6971 stamped right on the compass body, same as the ones we drew from supply. The aluminum housing is powder-coated OD and feels as solid as the day I was first issued one back in 2007. Seven tritium micro-lights on the dial and needle mean you can shoot an azimuth in total blackout without fumbling for a red lens, which mattered more than I can say on more than a few dismounted patrols. Induction damping means no bubble, no liquid to freeze up on you at altitude tested that at about 9,500 feet in winter and it didn't miss a beat. Only real limitation, and it's worth saying so civilians know going in: the dial is in mils, not degrees, so if you're used to a baseplate compass for topo work you'll need to do some conversion math. That's not a flaw, that's mil-standard your 1:50,000 map grid reads in mils anyway. Comes with the canvas pouch, which is the same style USGI pouch we used to string on LBE. This isn't a Suunto MC-2 with a pretty mirror it's a land nav tool that'll outlast you if you treat it right.
Genuine MIL-PRF-10436N build, NSN-stamped
exactly what USGI-issue looks like,7 tritium micro-lights provide hands-free darkness reading for 12+ years
Aluminum housing is shockproof, waterproof, sandproof bomber constructionNo built-in declination adjustment, you do the math manually
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Bought as backup, became primaryHad a nice Silva Ranger for years, figured I'd get a lensatic for my military kit collection. Expected it to be a novelty, ended up using it constantly. The tritium is genuinely useful I navigate at dawn/dusk a lot for hunting, and not needing to expose a light to read the compass is huge. The lensatic system is fast once you learn it sight, read, move. No laying the compass on the map, no baseplate alignment, just point and shoot. Mine is 2020 production, tritium is bright, case is unissued. The aluminum housing has taken some dings and keeps working. I've dropped it, stepped on it, left it in a wet pack, no issues. The included case is functional, not fancy. I added a paracord lanyard for neck carry.
Should've bought this years ago.
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As advertisedThx just what I wanted. It’s in excellent shape thank you very much.
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Real Deal! Awesome!Tritium: The one I received was dated 17-12. The radioactive tritium is a bit spooky but cool. I know it will fade over the years, but currently, it provides enough lumination to read the dial in the dark. I don't personally need tritium, but this was cheaper than I could get a phosphorous one. Weight: The compass is lighter than I expected it to be, which is a good thing. Fit and finish: The is a little bit of black paint missing at the hinge. Also, opening it up entirely, it's not perfectly level, or maybe even along the bottom. The 0 graduation mark looks like it wasn't milled the same and is a little harder to make out compared to others. Maybe that's intentional? The hinge is currently working great. The scale marking does match up with a 1:50000 map. I care more about performance than fit/finish, but at this price range, some might expect perfection. Accuracy: To test this, I did four readings of the goalposts from the corner of a socket field and used Google maps satellite view to look up their location. After figuring it all out, I got errors of -0.4, -0.5, 0.4, 0.7 deg. That's a pretty good result and might even be a bit of a fluke. But the point is it's accurate, and I have no hesitations about trusting it. You can use this directly with a map if it's orientated correctly or if you use the bezel, but I'm waiting for a protractor with these milliard units before taking it with me. It would be nice if it came bundled with something.
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