---
title: What is a tide gauge?
description: What is a tide gauge?
---

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# What is a tide gauge?

A device used to measure the level of the water at a specific location and often based on radar technology - although many other technologies exist such as acoustic gauges, pressure gauges, float gauges etc. The gauge must be installed on a rigid stable structure, and connected to a   
data logger that will record the level at a fixed time interval, usually a minimum of hourly, but often more frequently. 

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