WS110 Waterproof Digital Compass Altimeter Barometer Thermometer
This is a handy compact digital compass with altimeter - Ideal for hikers hunters fishermen or any activity outside. - Altimeter - measures in either meters or feet (-700 ~ 8680 meters) - Relative Height accuracy - +/- 3.m - Absolute Height accuracy - +/- 12m - Angle accuracy - +/- 8