Specifications:<br />Altimeter measuring range: 0 ~ 5000m<br />Barometer measuring range: 600 ~ 1000hpa<br />Temperature measuring range: -30 ~ 50?<br />Operating temperature: -20 ~ +40?<br />Storage temperature: -30 ~ +65?<br />Item size: 85 * 68 * 28mm / 3.3 * 2.7 * 1.1in<br />Dial diameter: 60mm / 2.4in<br />Item weight: 91g / 3.2oz<br />Package size: 14.5 * 13.5 * 3.5cm / 5.7 * 5.3 * 1.4in<br />Package weight: 182g / 6.5oz