Self-Recording Pressure and Temperature Observation Tide Logger for Coastal Monitoring,
coastal water level data logger, marine tide monitoring system, Pressure and Temperature Tide Logger, Self-Recording Tide Logger, self-recording tide logger for coastal monitoring, Tidal Observation, tidal observation equipment, Tide Logger, water level monitoring sensor,

Feature

Small size, light weight
2.8 million sets of measurements
Configurable sampling period

USB Data Download

Pressure calibration before water entry

Technical Parameter

Housing material: POM
Housing pressure: 350m
Power: 3.6V or 3.9V disposable lithium battery
Communication mode: USB
Storage space: 32M or 2.8 million sets of measurements
Sampling frequency: 1Hz/2Hz/4Hz
Sampling period: 1s-24h.

Clock drift: 10s / year

Pressure range：20m、50m、100m、200m、300m
Pressure accuracy：0.05%FS
Pressure resolution：0.001%FS

Temperature range：-5-40℃
Temperature accuracy：0.01℃
Temperature resolution：0.001℃

Contact us for a brochure! 

Tides are one of the most important factors influencing coastal and marine environments. Reliable tidal observations support coastal engineering, harbor management, oceanographic research, environmental monitoring, and sea-level studies.

To understand tidal changes over time, monitoring systems need to continuously record changes in water pressure and temperature and convert these measurements into useful environmental data.

The Self-Recording Pressure and Temperature Observation Tide Logger is designed for this type of long-term and unattended monitoring. By continuously recording pressure and temperature data, the instrument provides a practical solution for observing tidal fluctuations and water-level changes in coastal and underwater environments.

What Is a Self-Recording Tide Logger?

A self-recording tide logger is an autonomous underwater monitoring instrument that records changes in water pressure over a defined period.

Because hydrostatic pressure changes with the height of the water column, variations in measured pressure can be used to determine changes in water level.

The addition of a temperature sensor provides valuable environmental information and can also support the interpretation and processing of pressure measurements.

Unlike manually operated tide observation methods, a self-recording logger can remain deployed underwater and automatically collect measurements according to a predefined recording interval.

This makes it suitable for projects requiring:

Long-term tidal observation
Continuous water-level monitoring
Coastal environmental surveys
Harbor and port monitoring
Oceanographic research
Sea-level studies
Field-based marine data collection
How Does a Pressure-Based Tide Logger Work?

The operating principle of a pressure tide logger is based on hydrostatic pressure.

As the depth of water above the sensor changes, the pressure acting on the sensor also changes.

During a rising tide, the water column above the instrument becomes higher, resulting in an increase in pressure.

During a falling tide, the water column becomes lower and the measured pressure decreases.

By recording these pressure changes over time, researchers can analyze the tidal cycle and calculate changes in water level.

A simplified monitoring process can be represented as:

Water Level Change → Hydrostatic Pressure Change → Sensor Measurement → Data Recording → Tide Analysis

The temperature measurement provides additional environmental data that can be used alongside pressure observations.

Why Measure Both Pressure and Temperature?

Pressure is the primary measurement used for pressure-based tidal observation, but temperature is also an important environmental parameter.

Pressure Measurement

Pressure data can be used to investigate:

Tidal fluctuations
Water-level changes
Long-period sea-level variations
Coastal water-level behavior
Changes in underwater pressure
Temperature Measurement

Water temperature can vary with:

Season
Water depth
Weather conditions
Ocean circulation
Freshwater input
Coastal processes

Recording temperature together with pressure creates a more complete environmental dataset.

For long-term deployments, synchronized pressure and temperature records can also help researchers identify environmental changes that may influence the observation data.

Key Features of a Self-Recording Pressure and Temperature Tide Logger
1. Autonomous Data Recording

The logger is designed to automatically record measurements during deployment.

Once configured, it can collect data at predefined intervals without requiring continuous operator attendance.

This is particularly useful for remote marine monitoring locations.

2. Pressure and Temperature Observation

The integrated measurement of pressure and water temperature allows users to obtain two important environmental parameters from a single monitoring instrument.

This simplifies underwater data collection and reduces the need for multiple independent instruments.

3. Long-Term Monitoring

Tidal processes occur continuously, so short-term observations may not always provide sufficient information.

An autonomous tide logger can remain deployed for extended periods, depending on the project configuration, battery capacity, deployment depth, and sampling interval.

Long-term datasets can reveal:

Tidal cycles
Seasonal variations
Water-level trends
Abnormal fluctuations
Differences between monitoring periods
4. Compact and Autonomous Operation

A self-recording logger is designed for underwater deployment without requiring a permanent connection to a surface data acquisition system.

This makes it suitable for locations where installing cables, external power supplies, or permanent infrastructure is difficult.

5. Data Logging for Post-Deployment Analysis

Instead of requiring real-time communication throughout the entire deployment, the instrument can store measurements internally for later retrieval and analysis.

This approach can be particularly practical for:

Remote coastal sites
Temporary monitoring campaigns
Oceanographic surveys
Harbor investigations
Research projects
Applications of Pressure and Temperature Tide Loggers
Coastal Water-Level Monitoring

Coastal water levels are affected by tides, atmospheric conditions, waves, currents, and other processes.

Pressure-based tide loggers can provide continuous observations that help researchers understand water-level variations at specific coastal locations.

Tidal Observation

Tide observation is essential for understanding the periodic rise and fall of sea level.

Long-term tidal datasets can support:

Tidal harmonic analysis
Tidal prediction
Coastal oceanography
Marine engineering
Hydrographic studies
Harbor and Port Monitoring

Water-level information is important for port and harbor operations.

Tide observations can support studies related to:

Vessel access
Port planning
Dredging
Navigation
Coastal infrastructure
Oceanographic Research

Researchers can use pressure and temperature data as part of broader oceanographic observation programs.

When combined with other instruments, tide logger data can contribute to a more comprehensive understanding of coastal and marine processes.

Environmental Monitoring

Changes in water level and temperature can provide useful information for environmental studies, particularly when observations are collected continuously over long periods.