You can never be too careful in the backcountry and the Avatech SP2 is a valuable tool to that end. Aimed toward the snow industry pros and trusted by legend Chris Davenport, among other experienced backcountry enthusiasts, the SP2 measures the snowpack by taking 5,000 measurements per second via Smartprobe technology, then syncing information (available in multiple languages) to your phone immediately. It only weighs 1.2 pounds, too.