HD-MAX II Dual-Frequency Echo Sounder

Description

The HD-MAX II Dual-Frequency Echo Sounder is a high-performance hydrographic surveying system designed for professionals who demand accuracy, durability, and seamless workflow integration. Built with a robust magnesium-alloy housing and engineered to operate in the harshest marine environments, it provides reliable and precise underwater depth measurements across a wide range of applications—including dredging, siltation measurement, deep-water bathymetry, high turbidity environments, and submarine terrain mapping.

Powered by advanced dual-frequency technology (24kHz & 200kHz), the HD-MAX II delivers exceptional detail and penetration, allowing operators to capture accurate shallow and deep-water profiles simultaneously. Its integrated temperature sensor automatically calibrates sound velocity in real-time, ensuring consistent and reliable results even in dynamic water conditions. With a rapid 50Hz ping rate and adaptive depth algorithm, the system provides fast, stable data acquisition across complex underwater landscapes.

Designed for maximum usability, the HD-MAX II features a bright 15-inch high-resolution display, intuitive physical controls, and an optimized software interface that simplifies data collection, survey planning, deployment, and post-processing. The integrated Windows 10-based host computer includes 16GB RAM, a fast 2.0GHz quad-core processor, and 128GB + 1TB SSD storage, enabling efficient onboard processing of high-volume survey datasets.

Field teams benefit from its robust connectivity options, including PPS, Trigger, RS232, RJ45, HDMI, USB, and multi-format data output compatible with leading hydrographic standards such as NMEA 0183, DESO 25, Echotrac, ODOM, Bathy, and Knudsen. The IP66-rated enclosure ensures long-term durability against dust, water spray, and challenging weather conditions.

With broad compatibility, wide depth range (0.15–300m @ 200kHz and up to 2000m @ 24kHz), industry-leading accuracy of ±0.01m, and advanced hydrographic processing tools, the HD-MAX II sets a new standard for professional underwater surveying. Whether you’re managing dredging projects, mapping seafloors, monitoring sedimentation, or conducting inland water studies, this powerful echo sounder delivers reliable, high-precision results every time.