Sierra Monitor Corporation 55 User Manual
OXYGEN DEFICIENCY MONITOR
PAGE 2
2. Features
2.1 Features of the Model 55 include:
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Temperature Stable
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Barometric Pressure Insensitive
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Large LCD digital display
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High accuracy over temperature range 0-50
o
C
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Fast response -90% full scale in 10 seconds
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Visual Alarm – LED provided on top of case
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External Earphone for noisy environments
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Single ON/OFF sliding switch
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Long Battery Life – 200 hours on a 9V battery
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Low Battery indication – visual display
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Small Size – Comfortable for belt water