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Tide and Wave Gauge (Pressure Type)
Frankstar Tide & Wave Logger is an independently developed high-precision wave and tide recorder for simultaneous continuous monitoring of tidal levels and wave conditions. It delivers stable, accurate multi-parameter oceanographic measurements for coastal and aquatic observation projects.The logger outputs comprehensive wave and water level data, including tidal level, significant wave height & period (H₁/₃), 1/10 wave height & period (H₁/₁₀), maximum wave height, mean wave height and corresponding wave periods.
Built-in 32 GB solid-state local storage and dual 3.6 V lithium thionyl chloride batteries support long-term fully autonomous underwater operation. Users can select sampling rates of 2 Hz or 4 Hz to match diverse monitoring tasks, with optional measurement depth ranges of 20 m or 50 m.Boasting compact size and rugged waterproof structure, the tide & wave recorder supports simple installation on multiple structures and platforms. It is the ideal solution for long-term monitoring in coastal zones, offshore waters, lakes, harbors, and groundwater observation projects. -
Radar Wave & Water Level Monitoring System
Frankstar Radar Wave & Water Level Monitoring System is a high-precision, non-contact marine hydrological monitoring solution designed for long-term offshore and coastal wave observation. Adopting professional radar wave measurement technology, this intelligent monitoring system supports 24/7 all-weather, unattended real-time detection of critical marine parameters, including wave height, wave period, wave direction and water level.It maintains stable and accurate data output even in harsh marine environments with strong wind, heavy waves, salt fog, high humidity and extreme temperature changes. Featuring outstanding waterproof, anti-corrosion and anti-icing performance, the radar wave monitoring system is widely applicable for offshore wind farms, port and waterway monitoring, marine engineering construction, coastal environmental protection and oceanographic scientific research.Equipped with standard remote data transmission and flexible system integration functions, the device provides professional data visualization and intelligent data analysis, delivering stable, continuous and reliable hydrological data for marine safety early warning, water resource management and offshore environmental monitoring projects. -
Frankstar Wave Sensor 2.0 to Monitor Ocean Wave Direction Sea Wave Period Marine Wave Height Wave Spectrum
Introduction
Frankstar Wave Sensor 2.0 is a solution for real-time ocean wave monitoring. Based on a nine-axis acceleration principle and advanced proprietary algorithms, it accurately measures wave height, wave period, wave direction and wave spectrum. Featuring a lightweight, heat-resistant design and ultra-low-power embedded processing, the sensor supports real-time data transmission via RS232 interface and integrates seamlessly with ocean buoys, drifting buoys, and unmanned platforms. Available in Basic, Standard, and Professional versions, it is designed to meet diverse wave observation needs.
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Frankstar RNSS/ GNSS Wave Sensor
Frankstar RNSS Wave Sensor is a next-generation solution for real-time ocean wave monitoring. Leveraging low-power embedded processing and RNSS positioning technology, it adopts proprietary algorithms to accurately measure wave height, wave period and wave direction. Equipped with lightweight marine-grade housing and standard RS232 interface, the sensor enables seamless integration with ocean buoys, unmanned surface vessels and various offshore platforms. Built-in positioning and timing modules make this RNSS Wave Sensor perfectly suited for marine environmental monitoring, navigation safety, offshore engineering and oceanographic scientific research.
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UNAS Underwater Noise Analyzer
The UNAS Underwater Noise Analyzer is a real-time system for the analysis and transmission of underwater noise. Building upon core strengths in low power consumption and low intrinsic noise, it supports dual operational modes: autonomous recording and real-time online transmission. Featuring a compact and lightweight design, the device can be deployed on buoys, seafloor platforms, or mobile observation platforms. It is equipped with a built-in rechargeable battery providing an autonomous endurance of ≥48 hours; alternatively, it can be powered by the host platform for long-term, continuous online monitoring, transmitting real-time noise data and spectral information via Ethernet or RS485 interfaces.
Multiple units can leverage the host platform’s clock to facilitate distributed, synchronized observations with a synchronization accuracy of better than 1 μs. The system is widely applied in fields such as marine noise online monitoring, acoustic tracking of marine mammals, and underwater engineering noise assessment, and is available in versions tailored for both coastal and deep-sea environments.
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Smurf Self-contained Hydrophone Array
Smurf is a deep-sea digital hydrophone designed on a ultra-low-power platform. Compact and highly portable, it enables high-precision acquisition of underwater acoustic signals and supports long-duration autonomous operation. The device features a high-speed USB interface for direct connection to a computer, allowing for data retrieval without the need to open the housing. It supports synchronized cable-based array configurations, expandable up to 128 elements, with a synchronization accuracy superior to 1 μs—ensuring that timing errors do not accumulate over time.
With self-noise levels lower than Sea State 0, its pressure-resistant titanium alloy structure is engineered for deep-sea environments down to 6,000 meters. Widely deployed in marine acoustic surveys, deep-sea scientific research, bio-tracking, environmental noise monitoring, and large-aperture array observations, Smurf stands as the premier choice for portable deep-sea acoustic observation.
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LoPAS-L Ultra-Low Power Self-Contained Acoustic Recorder
The LoPAS series consists of ultra-low-power, self-contained underwater acoustic sensing devices. Featuring embedded low-noise signal processing modules and utilizing piezoelectric sensing technology, these devices enable the simultaneous acquisition of underwater acoustic signals and depth/temperature data, as well as long-duration, autonomous recording. The devices’ self-noise levels are lower than those of Sea State 0 conditions; furthermore, their ultra-low-power architecture ensures stable and reliable operational endurance. The series supports synchronized multi-device array deployment—achieving synchronization accuracy superior to 1 μs—with array apertures capable of covering the full ocean depth.
The LoPAS series employs a universal mounting structure, allowing for easy integration into various platforms such as subsurface moorings, buoys, and offshore observation stations. It is widely applied in fields including marine acoustic surveys, offshore scientific research, bio-tracking, wind farm noise monitoring, and underwater environmental impact assessments.
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ARMS Infrasonic Noise Monitor
The ARMS Underwater Acoustic Noise Monitor is an underwater noise monitoring instrument independently developed by Haiyan Electronics. It is an integrated acoustic signal acquisition device designed for applications such as marine acoustic monitoring, underwater scientific exploration, and underwater noise measurement. The product features core advantages including a wide frequency response range of 10 Hz to 10 kHz, low equivalent self-noise, and high receiving sensitivity. Utilizing a self-contained, integrated design, it is capable of independently performing in-situ acquisition and storage of underwater acoustic signals without the need for complex external acquisition equipment.
With its stable performance and precise measurements, the ARMS Underwater Acoustic Noise Monitor serves as an ideal specialized instrument for marine environmental monitoring, underwater engineering surveys, and acoustic marine research.
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VS22 Vector Hydrophone
As a 2D vector hydrophone, Frankstar VS22 utilizes a magnetoelectric velocimeter for signal sensing. It is suitable for application in acoustic detection, underwater acoustic array systems and underwater towed platforms.
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SPH6025 Broadband Spherical Hydrophone
Frankstar SPH6025 broadband spherical hydrophone features an operating frequency range from 1 Hz to 90 kHz, with a typical receiving sensitivity of -200 dB re 1V/μPa. The capacitance of the piezoelectric element is 30.5 nF. It maintains excellent signal-to-noise ratio even when transmitted via long extension cables. Boasting outstanding acoustic performance and high durability, the SPH6025 is applicable to a wide range of underwater acoustic measurement scenarios.
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SPH6020 Broadband Spherical Hydrophone
Frankstar SPH6020 Broadband Spherical Hydrophone offers an operating frequency range from 1 Hz to 120 kHz, with a typical sensitivity of -203 dB re 1V/μPa. The piezoelectric element has a capacitance of 19.5 nF, and it maintains an excellent signal-to-noise ratio even when using long extension cables for transmission.Delivering superior acoustic performance and exceptional durability, the SPH6020 is well-suited for a diverse range of application fields.
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SPH6015 Broadband Spherical Hydrophon
The Model SPH6015 broadband spherical hydrophone operates from 1Hz to 150kHz with a typical sensitivity of -207dB re.1V/μPa and a piezoelectric element capacitance of 11.5nF. It maintains excellent signal-to-noise ratio even when used with long extension cables. Featuring outstanding acoustic performance and durability, the SPH6015 is suitable for various applications including biological monitoring and underwater acoustic measurement.
