HERCHR Digital Altimeter Portable Compass Barometer Altimeter Compass LCD Digital Thermometer Watch Outdoor Navigation Altitude Meter Temperature Humidity

GPS Positioning: The Altimeter digital compass is compatible with dual GPS systems and features dualsatellite positioning, speed, distance, and nine sets of course reversal/return records,also includes altitude target reminder settings, historical altitude data analysis, temperature and humidity records, a 24-hour barometric pressure trend display, and a 16-position electronic compassItem Type: GPS Electronic AltimeterModel: FR510Material: ABSColor: As Pictures ShownBattery: Built-in rechargeable lithium batteryBattery mAh: 5V 230mhaWorking Temperature: -20℃--+60℃/-4°F--+140°FStorage Temperature: -30℃--+60℃/-22°F--+140°FAltimeterDisplay Range: -700m--9000mDisplay Range: 300--1100hpaResolution: 1m/3ft-1640ft--32760ftResolution: 1m/3ftTemperature Measurement Range: 20%-95%BarometerDisplay Range: 300--1100hpa8.8--32.60inHgResolution: 0.1hpa/0.03inHgMoon: GPS Dual Moon System CompatibleThermometerResolution: 1℃/1FCompassResolution: 1°Weight: Approx. 136gDisplay Length: Approx. 48mm/1.89inchDisplay Width: Approx. 31.8mm/1.25inchThickness: Approx. 20mm/0.79inchSize: Approx. 100x66x20mm/3.94x2.60x0.79inchPackage List：1 x GPS Electronic Altimeter2 x User Manual1 x Hanging Rope1 x USB Cable

• GPS Positioning: The Altimeter digital compass is compatible with dual GPS systems and features dualsatellite positioning, speed, distance, and nine sets of course reversal/return records,also includes altitude target reminder settings, historical altitude data analysis, temperature and humidity records, a 24-hour barometric pressure trend display, and a 16-position electronic compas
• Altitude Monitoring: The Altimeter watch displays the current altitude in real time, helping climbers determine if they are approaching altitude sickness areas (e.g., above 3,000 meters) and adjust their speed or descend accordingly. Temperature and humidity alerts and a thermometer allow you to prepare warm clothing or replenish water in advance
• Multiple Applications: Hiking GPS is suitable for high-altitude mountaineering and trekking, jungle exploration and orienteering, desert and crossings, water sports, and sailing. GPS altimeters can be used in open water (such as lakes and offshore) to plan routes and avoid straying from your target area
• Real-time data feedback improves decision-making: Hiking thermometer altimeters use altitude data to help plan refueling points (for example, water consumption increases by 30% for every 1000 meters of ascent); temperature and humidity data guide clothing selection (underwear is required when humidity exceeds 60%); and a compass and GPS ensure correct direction
• Multiple Parameter Integration: Altitude gain/loss, 7 sets of 24-hour historical altitude data/curves, altitude change interval notifications, configurable from 1 to 200 meters. Temperature, humidity, time, date, alarm, flashlight, built-in rechargeable lithium battery, and IPX4 water proof rating