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

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

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

Available in an elegant mahogany or oak case with flat glass

Can receive up to 8 CM7 Sensors (one included)

Min/Max records for temperature and humidity readings

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