Maximum Harbormaster Tide Clock Colour:Brass it tracks according to the

it tracks according to the average time between lunar high tides (12 hrs

or both the top and bottom mounting hooks to screw your hygrometer to a wall or fence post for additional stability

Each pack contains 200 charts which is four years’ worth of thermograph papers

Outdoor Temperature Range -40

Available in an elegant mahogany or oak case with flat glass

Maximum Harbormaster Tide Clock Colour:Brass it tracks according to theDescription Features Specification The Harbormaster is a tide clock with a patented quartz movement. Powered by a single AA battery, it tracks according to the average time between lunar high tides (12 hrs, 25 min). Fluctuations in conditions, location and the distance of the moon from earth can affect this average. However, over a lunar month, the Harbormaster will provide a practical indication of local tides in a traditional brass dial. Choose the