| Brunton Geo Pocket Transit Compass with 0-360 Degree Scale |  | Brand: Brunton
List Price: $439.00
Buy New: $409.50
as of 3/21/2010 07:00 EDT details
You Save: $29.50 (7%)
Seller: Amazon.com
Rating:  3 reviews
Color: Grey
Shipping Weight (lbs): 1.1
Dimensions (in): 5.4 x 5.4 x 2.7
MPN: 5010
Model: F-5010
UPC: 080078000485
EAN: 0080078000485
ASIN: B000FKRQAC
Shipping: Eligible for FREE Super Saver Shipping
Availability: Usually ships in 24 hours
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| Features:
| • | Precise pocket compass with fast rare earth magnet and sapphire jewel bearing | | • | 0-to-360-degree scale; 2 long-level bubbles on outside of housing | | • | Hinge inclinometer saves time by taking simultaneous trend and plunge measurements | | • | Azimuth and vertical angle (+/- 90 percent) readings are accurate to +/- 1/2 degree | | • | This item is not for sale in Catalina Island |
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Product Description
Brunton Geo Pocket Transit Waterproof WP Professional Compasses Brunton Geo Pocket WP Professional Compass: Brunton Geo Pocket Transit 0-360 degree Waterproof WP Professional Compass Model 5010
Amazon.com Product Description
The ultimate compass for professionals on the move, the Brunton Geo Pocket Transit International is compact, versatile, and precise. The billeted aluminum, waterproof compass contains a fast, magnetic-north-seeking, rear earth magnet that's balanced on a sapphire jewel bearing for quick measurements. The most conspicuous feature is the hinge inclinometer--accurate to +/- 2 degrees--that allows you to take simultaneous trend and plunge measurements to save time and effort. The Geo Pocket Transit also includes two long-level bubbles on the outside of the aluminum housing for no-guess leveling from the sides or the bottom. And thanks to the innovative needle design--which can be locked or unlocked, depending on your requirements--it's easy to take both strike measurements and azimuth readings. The compass also takes vertical angle measurements to +/- 90 percent (or 100 percent grade), with 5-percent grade scale increments. And users needn't worry about imprecise results, as the compass's vertical and azimuth readings are accurate to within +/- 1/2 degree (with 1-degree graduations and 10-minute readability for both). Additional features include "Buck Horn" style sights for increased accuracy, a single NdFeB magnet that resists demagnetization better than other magnets, a cover hinge assembly designed for increased durability, a precision-aligned mirror with convenient "see-through" sighting capability, and magnetic declination adjustment with east and west declination settings to 180 degrees. The Geo Pocket Transit, which boasts a 0-to-360-degree scale and comes with an attractive leather case, measures 3.62 by 2.81 by 1.31 inches (W x H x D) and is backed by a lifetime warranty. What's in the Box?
Geo Pocket Transit International compass, leather case, user's manual.
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| Customer Reviews:
Enginneering Geologist Review November 9, 2009
Keith E. Millard (Placerville, CA USA)
1 out of 1 found this review helpful
Preface: I'm an engineering geologist. I take geologic measurements. I don't do surveying; that's what surveyors are for. That said... ditto what Gary said. I have a composite (plastic) Classic, and a Geo. For the record, the so-called "plastic" Classics are just as accurate and bomb-proof as the rest of them. I've been using my composite Classic for 5 years with no problems... except for that dog-gone hinge. No, it doesn't break, but it sure gets in the way when taking measurements. Then came the Geo... I lusted over one of these for several years; then, about a year ago, took the plunge. The new hinge design works just as expected... which is to say miraculously! It allows you to put your lid on ANY surface, regardless of orientation, and get your measurements. And you can adjust the hinge friction! Try THAT with your Classic! There are 2 little bubble level tubes set into the bottom edge, right in front of the hinge, and they're a huge help when taking measurements over your head. Another feature I love is the ability to use the compass with the needle swinging freely like the classic, or lock it down so that you have to push a little button to release it, then release the button to lock it down again. There's a little swing-arm on the bottom to switch between these 2 modes. The 2nd mode I described is great for general use, but is particularly nice for taking measurements where it would otherwise be almost impossible to read the dial, like over your head. This way, you can level the compass using either the round bubble level (viewed in the mirror) or the little ones on the side (but be careful, the little ones only read in 1 direction), push the button to let the needle swing, watch it in the mirror until it stops, then release the button thereby locking the needle with your reading so that you can read it when you remove the compass from the outcrop. And since your dip value is on the hinge, you're done. Cool, huh? It's kinda hard to explain, but it's sa-weet! And as solid as the case and hinge are, you know it's perfectly precise. Oh, and the bottom is flat; no ring like the Classic. So those are the technical benefits; but these things are as COOL as they are functional! There's just something about precision machined aluminum... I guess it's a guy thing, I dunno. It's the perfect compass in my opinion, and it's way cool!
I also second something else Gary said: If you're still using strike and dip, try dip direction and dip value (dip/dip direction). Basically the trend and plunge of the dip line. Once you're used to it, it makes way more sense. And the Geo makes it a snap to take measurements this way in 1 step, not 2. And lastly, get the 0-360. If you're still using quadrants, you should be retired by now.
Get the Geo; it's well worth the bucks; you won't regret it!
Geologist's Review August 26, 2009
Gary Rogers
3 out of 3 found this review helpful
I've use the Geo Compass on several geological mapping projects. The Geo Compass design allows readings of dip and dip direction with only one placement on the rock surface (if you are still using strike and dip you should look into the many benefits of dip/dip direction readings).
You read the compass direction from the compass needle position and the dip angle from the small protractor on the side. This avoids the need to sit or lie on the ground to read the bubble level (although a bubble level is still available if you want to get dirty). So the Geo Compass allows not only more reliable readings, but is faster and you can stay off the dirt and out of the puddles. The design is similar to the "Clar" style compass used in europe for decades (why did it take us so long to see the light?) and competes with the "Freiberger Geological Stratum Compass" (which is much more expensive and has what I consider to be some quirks).
The Geo Compass is solidly built and should provide years of service. The included leather case works better than I thought it would - holding the compass fairly securely even without the snap. The only downsides are that it is slightly larger than the classic style (well worth the tradeoff) and more expensive. Prices seem to fluctuate, dipping down to the $300-$350 range.
I'd buy another one if I ever lost mine, even though I have a classic model available.
A Solid Item October 30, 2008
pg2007 (Massachusetts, USA)
8 out of 8 found this review helpful
I use this item in my hobby--hunting and reporting on old survey benchmarks.
It gives me accuracy of approximately 1.5d. Most of the time I use it hand-held, but I have also mounted it on a tripod for doing simple triangulation (resections) on survey marks and their reference points.
One problem I've noticed is the difficulty of pressing and holding the needle release button when taking bearings. The button is small and hard to depress all the way, since it digs into your finger. If it is only partially depressed, an innaccurate reading will result.
The ability to sight along a tape on the ground and take its bearing (using the longer extended sight and the transparent "window" on the other side of the transit) is quite useful to me.
It sort of scares me that this expensive block of aluminum has no way of accepting a lanyard or other safety restraint, and so I keep worrying that I will drop it off a cliff or something. I find the bulky carrying case not useful, since my belt us usually under a pack strap anyway. Thus for quick bearings, I use a simpler baseplate compass, that I can also carry in my breast pocket and which won't send my to the poorhouse if it has to be replaced.
Expensive, but it's the standard...maybe I'll have to become a geologist to make fuller use of it..!
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