Here's what other sites are saying:
Digging a pit and testing stability is a start, but to really analyze the snowpack, you'll need the Backcountry Access Digital Thermometer. Measuring the differences in temperature between layers allows further and more accurate predictions of changing stability. Measures from -50 to 200 degrees Celsius or -58 to 392 degrees Fahrenheit Protective sleeve included
Any serious backcountry traveler should be checking all signs for snow stability, including snow temperature with the Backcountry Access Calibratable Digital snow thermometer.
Taking snow stability seriously requires professional snow study tools like the Backcountry Access Calibratible Digital Thermometer. A digital snow thermometer is required equipment to create professional quality snow profiles, and it's always fun to get an accurate temperature reading when you're out ski touring. The backcountry Access digital thermometer can display Celsius or Fahrenheit and includes a nice little sheath for safe keeping.
- Altrec Outlet
When you're serious about backcountry safety, Backcountry Access's Thermometer will tell you the temperature of the snow you're about to traverse (or not). Displayed in either Fahrenheit or Celsius, being able to tell temperature gradient is a basic snow-safety step.
- Mountain Gear
Backcountry Access Analog Thermometer
Backcountry Access Ruler
Backcountry Access Snow Study Kit
$95 - $99
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Backcountry Access Slope Meter
$25 - $29
Brooks-Range Snow Crystal Card
Brooks-Range Basic Snow Study Kit
Brooks-Range Folding Ruler