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This barometer uses a digital barometric pressure sensor to monitor barometric... This barometer uses a digital barometric pressure sensor to monitor barometric pressure over a scale of 27.5 " to 31.5" of mercury and displays the reading in a red LED window. It can be scaled by the user to read in km or mm of mercury, as well as in... more

This barometer uses a digital barometric pressure sensor to monitor barometric... This barometer uses a digital barometric pressure sensor to monitor barometric pressure over a scale of 27.5 " to 31.5" of mercury and displays the reading in a red LED window. It can be scaled by the user to read in km or mm of mercury, as well as in... more

This barometer uses a digital barometric pressure sensor to monitor barometric... This barometer uses a digital barometric pressure sensor to monitor barometric pressure over a scale of 27.5 " to 31.5" of mercury and displays the reading in a red LED window. It can be scaled by the user to read in km or mm of mercury, as well as in... more

This barometer uses a digital barometric pressure sensor to monitor barometric... This barometer uses a digital barometric pressure sensor to monitor barometric pressure over a scale of 27.5 " to 31.5" of mercury and displays the reading in a red LED window. It can be scaled by the user to read in km or mm of mercury, as well as in... more