What To Look For
Above all, an altimeter should be accurate and durable. It should fit the activity--an altimeter for mountain climbing, for example, requires different information than one for downhill skiing. More bells and whistles doesn't necessarily mean higher quality. Many altimeters come with compasses, which might be convenient but drain the battery more quickly and really aren't any more practical or accurate than a handheld compass.
Common Pitfalls
Altimeters that rely upon barometric pressure to measure altitude are common and convenient for predicting weather, but they have to be frequently recalibrated to ensure accuracy since changing weather can affect the measurement. GPS-enabled altimeters are usually more expensive but don't have to be recalibrated. Their accuracy depends almost solely upon the accuracy of the map used by the device manufacturer.
Where To Buy
Specialty sporting goods stores, such as REI or Eastern Mountain Sports, are the best places to buy an altimeter. Knowledgeable stores can offer advice on different models for individuals. Don't hesitate to do research on online forums, as well. Comparison shoppers can often pick up good online deals on altimeters.
Cost
High-quality altimeters range in price from $100 to $300, with the cost of some advanced models approaching $500. Altimeters on the low end of the scale will include an altimeter, barometer, thermometer and light for night reading. The higher-priced models usually also will have a compass, watch and historical barometric and altitude data.
Comparison Shopping
The Suunto altimeters are regarded as the top-of-the-line models. The Suunto Core models, which range in price from $250 to $500, include a storm warning sensor that alerts climbers to sudden changes in barometric pressure that can signal a rapid weather change. Mid-range altimeters from manufacturers such as Highgear and Garmin cost about $150 and come with a variety of options.
Insider Tips
Try to find an altimeter that has a battery you can replace. Altimeters with scratch-resistant glass are a good investment, particularly for skiing or climbing.
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