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Pieps 30 Degree Plus - 2010 BCS

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30 Degree Plus
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Knowing the steepness of a hillside is imperative to traveling safely in avalanche terrain, so Pieps created 30 Degree Plus. Just attach this electronic goniometer to your ski pole and lay it on the slope, and it'll give a precise measurement of the slope angle. One-button operation and an easy-to-read LCD provide a quick digital readout of angle and the temperature of the air so you can gather this vital information without guesswork. A long-lasting Li-ion provides ample power for multi-day tours, and the compact size means there's no excuse to leave this helpful piece of kit behind.

  • Electronic goniometer measures slope angle from 20 degrees to 50 degrees with +/- 1 degree of accuracy
  • Provides air temperature between -4F (-20C) and (113F) 45C to aid in evaluation of potential changes to snow quality

Bottom Line: 25-45 degrees and it's time to watch your back.

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Polly pulling a slope measurement

By: Backcountry.com Sponsored Athlete
October 25, 2010

Polly Samuels McLean taking a slope measurement in the Wasatch Mountains.

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Rating for this product: 5

Fantastic Goniometer

By: Backcountry.com Sponsored Athlete
October 25, 2010

This might well rate as one of the coolest, most esoteric pieces of gear out there, but I happen to love it. A big part of this is that it is very quick, accurate and easy to use, so you end up using it all the time. I attach mine to my ski pole just below the handle and pull slope angles multiple times per day with it, as much as anything just to keep my angle estimation skills sharp.

In the past I've used Life-Link and other slope meters, but they have either broken, or are hard to get at so I don't measure slopes as often as I should. But, not with this one. I like to make a game out of it and have everyone in the touring party guess the slope angle before actually measuring it. Slope angles are one of the most important aspects of avalanche safety and it is important to develop and eye for subtleties in the 30-40 degree range. Like a mechanic looking at a nut or bolt, you should be able to look at a slope from a variety of angles and call the inclination to within a degree or so.

This unit also has a thermometer on it, which is a nice feature as well.

The unit can be operated with glvoes/mittens on and turns itself off after ten seconds. The battery is non-replaceable, but will supposedly last for ten years of heavy use.

As a geeky sidenote, slope angle indictators are often called inclinometers, but the correct term for a tool to measure angles such as ski slopes is a goniometer. Inclinometers measure the angle of an aircraft in relation to the ground (or horizon?).

A very useful tool and perfect gift.

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Out of Stock

Item: LIB0010

2010 Model No Longer Available

We have a lot more Avalanche Survival than that

Avalanche Survival

Fantastic Goniometer

5 star rating

By: Andrew McLean October 25, 2010

This might well rate as one of the coolest, most esoteric pieces of gear out there, but I happen to love it. A big part of this is that it is very quick, more...

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Material:
[Housing] plastic; [Straps] synthetic 
Dimensions:
3.5 x 0.9 x 0.7in (8.8 x 2.3 x 1.8cm) 
Power Supply:
Li-ion battery 
Weight:
1oz (29g) 
Recommended Use:
Measuring slope angle 
Manufacturer Warranty:
5 Years