Range 1.8 to 200ft; frequency 200 khz; beam angle 24 degrees; display backlit, lcd; power source use alkaline or lithium cell; battery life 500 sounding (alkaline), 1000 soundings(lithium) ; weight 11oz.
A precision measuring instrument designed to be worn on the wrist to accurately indicate the depth of a dive in sea water. It consists essentially of a pressure sensing element, a movement mechanism, and an indicating dial, inclosed in an evacuated pressure proof casing.
Classification: Instruments and apparatus for measuring or checking pressure
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