Maximum's Harbormaster Tide Clock is powered by a single AA battery (included).
Tracks according to average time between high lunar tides in the Atlantic Ocean (12 hours, 25 minutes). Fluctuations in conditions, location and the distance of the moon from Earth can affect this average. However, over a lunar month, Maximum's Harbormaster will provide a practical indication of local tides.
A simple mounting system makes it easy to remove from the wall for battery replacement or to make adjustments for different locations.
All Maximum products are covered by a 5-year manufacturer’s warranty.
Download Owners Manual ( 306 KB)
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