GPS Altimeter Barometer Thermometer Hygrometer Multifunction Meter with Sensor IPX4 for Outdoor Camping Hiking Mountaineering.FUNCTIONS: The multifunction meter integrates GPS, altimeter, barometer, , thermometer, hygrometer, time, alarm clock and LED flashlight functions. HIGH ACCURACY: This electronic meter uses high accuracy sensor to accurate and detection results, improving travel security and convenience. RECORDING FUNCTION: With total height gain and loss, 24 hour height records an