This is the Backcountry Snow Study Kit with a Digital Thermometer. It includes: the Snow Crystal Card – provides 3 textured grids for examining snow crystals and snow pit "prompt legends"; a 100 cm Folding Ruler; a Digital Thermometer – to analyze the snowpack's temperature gradient; the Folding Magnifier X5 – for viewing snow crystal forms; a 2-inch Snow Brush – for use in snow study pits; the Fieldbook #311 – allows you to write under any condition regardless of how wet or cold and the Brooks-Range Field Organizer™ for compact storage.