Snow Density Gauge
January 08, 2010
Small enough to fit in a jacket pocket, Brooks-Range’s aptly-named Pocket Snow Density Gauge is an esoteric piece of avalanche equipment made to aid in the assessment of a slope’s snow quality, rate of snow metamorphosis, slab conditions, and snow-pack moisture content.
The gauge, made from aluminum, consists of a tube one inch in diameter and about seven inches long. It weighs 3.5 ounces. There’s a serrated cutter on one end to fill the tube with sample snow.
By packing the tube with snow, the gauge determines snow density with a scale reading from zero to 60 percent (in one-percent increments). The gauge, modeled on a tool used by the National Weather Service, operates on the principal of mass balance.
Like other snow density gauges, the Brooks-Range operates as a balance, meaning it doesn’t need to be calibrated. But unlike others, it weighs less and fits in a jacket pocket. The company calls it a compromise between “laboratory precision and rugged simplicity.”
The Pocket Snow Density Gauge costs $50. http://www.brooks-range.com
—Ryan Dionne
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The review of the Brooks-Range pocket snow density gauge is not completely accurate. This particular scale ($49) actually only reads from 0% to 40% water density, in 5% increments or they have a more expensive version ($69) that reads from 0% to 55% water density, also in 5% increments. Neither measure in 1% increments. The only scale I have been able to find that measures 1% increments can be found at: http://www.wasatchtouring.com/store/densitygauge.html