SUPOW(TM) 4 in 1 Outdoor Sports Multifunctional Altimeter Barometer With Compass Thermometer for Outdoor Hiking Climbing Comes with mountaineering hook, convenient to carry. 4 In 1, can be measured direction, altitude, temperature, pressure. Ideal for wild mountain climbing, rock climbing, camping, hiking, hunting, skiing and any other outdoor sports. Barometer pressure range: 600~1000hpa Altimeter measuring range: 0~5000m