Products
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Vibrocorer System
Engineered for high-quality sampling in compacted sediments, the FS Vibrocorer System delivers powerful, modular performance for rapid operation from a wide range of vessels. It recovers pristine 50–96 mm diameter cores, ideal for both complex offshore projects and agile nearshore surveys. The system can also be customized to meet specific project requirements.
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Tide and Wave Gauge(Gravity Type)
The Tide and Wave Sensor by Frankstar provides high-accuracy wave and tide measurements using RNSS-based velocity sensing and low-power onboard processing.
Continuous measurements and algorithm-based averaging enable precise tide level determination, while configurable wave acquisition supports the extraction of key wave parameters such as significant wave height, wave period, and wave direction. In addition, integrated positioning and timing functions enhance data reliability and synchronization.
Housed in a compact, marine-grade enclosure with RS232 communication and clamp mounting, the RNSS Wave Sensor is well suited for deployment on observation buoys, unmanned surface vessels, and other floating platforms, supporting long-term oceanographic monitoring, coastal engineering, and scientific research
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Self-Contained Tide Gauge
Frankstar self-contained tide gauge is a compact, self-contained tide gauge for precise water level and temperature monitoring. Using high-accuracy pressure-based sensing, it delivers reliable, long-term tide observations in rivers, lakes, and shallow coastal environments for hydrological and marine applications.
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Gravity Corer
Our integrated coring solutions cover the full range of seabed sampling needs. While our standard Gravity Corer is valued for its simplicity and reliability in obtaining columnar samples, the Piston Gravity Corer represents a definitive advancement for critical applications. Its active piston mechanism counteracts internal friction and prevents plugging, delivering longer, less disturbed cores with superior stratigraphic preservation in soft sediments.
Supported by a versatile deployment platform for heavy equipment and complemented by a selection of compact corers, our product line forms a complete system—from routine surveys to precision research—all customizable to your specific mission requirements.
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Tide and Wave Gauge (Pressure Type)
A self-developed, high-precision wave and tide recorder designed for simultaneous monitoring of tides and waves, enabling accurate and reliable multi-parameter oceanographic measurements. The instrument provides comprehensive wave and water level observations, including tidal level, significant wave height and period (H₁/₃), one-tenth wave height and period (H₁/₁₀), maximum wave height, mean wave height, and their corresponding wave periods.
The system features on-board 32 GB solid-state data storage and is powered by two 3.6 V lithium thionyl chloride batteries, ensuring long-term autonomous operation. Configurable sampling rates of 2 Hz or 4 Hz allow flexible deployment to meet different monitoring requirements, with a measurement range of up to 20 m or 50 m (optional).
With a compact, robust design, the recorder can be easily mounted on various structures or platforms, making it well suited for long-term deployments in coastal and offshore marine environments, lakes, harbors, and groundwater monitoring applications.
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Box Corer
Frankstar Box Corers provides a series of engineered solutions designed for the efficient collection of large-area, high-quality, undisturbed seabed sediment and overlying water samples. From the classic and reliable standard model to enhanced designs like the stabilized frame-type and high-penetration flow-guide type, and further to our efficient single-arm model, the entire product family is built to meet the rigorous demands for sample volume and structural integrity in practical surveys. All models can be flexibly configured to suit specific project requirements.
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CTD (Standard Version)
Frankstar CTD is a professional hydrological observation instrument with a working depth of up to 7,000 meters. The device adopts an integrated direct-reading & self-recording mode, featuring high accuracy, low power consumption, and low flow resistance. It can accurately measure water temperature, conductivity, and depth parameters, and is applicable in marine hydrological monitoring, oceanographic research, port and waterway engineering, and other fields. It is suitable for use with ocean stations, moorings, buoys, and multi-parameter water samplers.
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Release Hook
The release hook, independently developed and patented by SEA Research, is used for the release of equipment and has been successfully applied to the release of submersible markers on the Xue Long, Dong Fang Hong 2, Hai Da and Zhang Jian, with a purely mechanical structure providing high reliability and using 316L stainless steel heat treatment and strengthening technology. It is an indispensable tool for the release of deep sea survey dive markers and seabed base.
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RS485 Two-Electrode Conductivity EC CT/ TDS Sensor for Wastewater Treatment Aquaculture
The Two-Electrode Conductivity/TDS Sensor is a high-precision digital analyzer designed for industrial and environmental water quality monitoring. Utilizing advanced ionic electrode technology, it provides stable measurements of conductivity (0-100mS/cm) and TDS (0-10000ppm) with ±2.5% accuracy. The sensor features a corrosion-resistant graphite electrode and polymer housing, ensuring long-term durability in harsh environments. With integrated RS-485 communication (Modbus protocol) and a built-in high-accuracy NTC temperature sensor, it supports seamless integration into automation systems. Its single-point calibration technology and isolated power supply design guarantee reliable data and minimal maintenance, making it ideal for wastewater treatment, aquaculture, and industrial process control.
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5 in 1 UV Absorption BOD TOC TUR TEMP COD Sensor for Water Quality Monitoring
The COD Sensor is a high-performance digital water quality analyzer utilizing ultraviolet absorption technology for precise measurement of COD, TOC, BOD, turbidity, and temperature. Equipped with RS-485 output and Modbus protocol, it ensures seamless integration into automation systems. Featuring a self-cleaning brush and reagent-free design, it minimizes maintenance and environmental impact. With rapid response times (tens of seconds) and automatic turbidity compensation, this sensor delivers reliable data in harsh industrial or environmental applications, including wastewater treatment, aquaculture, and environmental monitoring.
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CO2 Probe Dissolved Carbon Dioxide Sensor in Water
The CO2 Sensor is a cutting-edge NDIR infrared absorption sensor designed for precise measurement of dissolved carbon dioxide (CO2) in water and industrial environments. Featuring a patented optical cavity, dual-channel reference compensation, and multiple output modes (UART, I2C, analog voltage, PWM), this sensor ensures reliable data with ±5%FS accuracy. Its convection diffusion ventilation design accelerates gas exchange while protecting the membrane, and the detachable waterproof structure simplifies maintenance. Ideal for aquaculture, HVAC systems, agricultural storage, and air quality monitoring, this sensor supports Modbus-RTU protocol for seamless integration into automation systems.
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UV Fluorescent Chlorophyll Sensor for Aquatic Ecosystem Monitoring
This cutting-edge blue-green algae sensor utilizes UV fluorescence technology to detect algal concentrations with high precision, automatically eliminating interference from suspended solids and turbidity. Designed for reagent-free, eco-friendly operation, it features an integrated self-cleaning mechanism and automatic turbidity compensation for stable, long-term monitoring. Encased in durable 316L stainless steel (48mm×125mm), the sensor supports RS-485 MODBUS output for seamless integration into industrial, environmental, and municipal systems. Ideal for safeguarding water bodies against harmful algal blooms in lakes, reservoirs, and coastal zones.
