Digital Yacht''s Barometer is intended for measuring atmospheric pressure within the range from 300 to 1100 hPa (mbar). The sensor is located inside the device case. The Device dimensions including the connector are 54x20x20mm the mass is only 11 grams. Pressure data output resolution 0.01 hPa (mbar) absolute measurement accuracy is ±1 hPa relative measurement accuracy is ±0.12 hPa.