Feature:1. Adopt high precision sensor chip, setting altimeter, compass, barometer, thermometer hygrometer, weather forecast, flashlight functions in one.2. Rechargeable professional altimeter for outdoor climbing, hiking, hunting, camping and travel.3. Ergonomic design, delicate button structure design with premium material, ensuring the reliability and water resistance.4. Support height gain/loss calculation and 24-hour historical height data/curve recording.5. Support historical high/low altitude, air pressure, temperature, and humidity record, with time/date display and alarm function.6. IPX4 waterproof, built-in rechargeable lithium battery for long using time, perfect for outdoor use.Specification:Item Type: AltimeterCondition: 100% brand newColor: As shownModel: FR500Material: SiliconeAltimeter Measuring Range: -2296ft to 29500ft (-700m to 9000m)Resolution: 1m/3ftHeight Measurement: Sea level height/climbing heightClimbing Altitude Recording Function: SupportAltitude Gain/Loss Calculation: SupportAltitude History Record: Record every 30 minutesUnit: Switch between m/ftBarometerMeasuring Range: 300hpa to 1100hpa (8.8 to 32.6inHg)Resolution: 0.1hpaUnit: Switch between Millibar and Inhg ThermometerDisplay Range: -20 to 60 (-4 to 140 )Resolution: 1 /1 Unit: Switch between and History Temperature Record: SupportHygrometerDisplay Range: 20%-95%Historical Record: Max/Min humidityCompassDisplay Mode: 360 , 16-orientation displayResolution: 1 Weather ForecastForecast Range: Next 12 to 24 hoursFour Weather Conditions: Sunny-Sunny to Cloudy-Cloudy-RainyTime and DateDisplay Mode: 24H or 12H display modeFlashlightFlashlight: LED flashlightBacklight: 5s high intensity LED backlightWaterproof Level: IPX4AccessoriesL1-12B Lithium Battery: 1pcsBattery Capacity: 5V 230mAhProduct Size: Approx. 100x66x20mm/3.9x2.6x0.8in.Package List:1 x Multifunctional Altimeter 1 x User Manual1 x USB Cable1 x Lanyard