1.Digital Compass with Altimeter 2.Digital compass 3.Altimeter, pressure (hPa, inHg, mmHg), Temperature 4.12/24 hour time

Digital Compass with Altimeter 

Power consumption:Single 3V lithium battery (CR2032)Battery life: Min. 12 months

Features:1) Altimeter (m, feet)2) Barometric pressure (hPa, inHg, mmHg)3) Temperature (°F or °C)4) 250 set of Altitude data history5) 12 or 24 hour time mode 6) Perpetual calendar7) Time and date by manual setting 8) Low battery indicator9) Lanyard included for easy carryingSpecifications:1) Compass range: 0°to 359°(digital)1 to 32 pointers (graphical)2) Anger accuracy: +/-3°3) Height accuracy: +/-3m4) Temperature range: -20 ~ +60°C(-4°F to +140°F)5) Temperature resolution: 1.0°C / 0.2°F6) Temperature accuracy: +/-1.0°C7) Pressure resolution: 0.1hap (0.1mmHg, 0.01inHg) 

Dimension: 92x51x16mm