The Impact Subsea ISD4000 is a compact, survey‑grade Depth and Temperature Sensor designed for high‑accuracy subsea measurement. Available in multiple pressure ranges — 10, 30, 50, 100, 300, 400 and 600 Bar — the ISD4000 provides reliable performance across a wide variety of underwater applications. Depth output is available at rates up to 100 Hz, making the system well suited for precision control and real‑time monitoring tasks.
A temperature‑compensated piezo‑resistive pressure sensor delivers depth accuracy to 0.01% Full Scale, ensuring stable and repeatable measurements. The ISD4000 can also be supplied with an integrated Attitude and Heading Reference System (AHRS). This system incorporates three MEMS‑based gyros, accelerometers, and magnetometers, providing accurate Heading, Pitch, and Roll. The heading output is highly resilient to temporary magnetic interference, supported by soft and hard iron calibration once installed on an ROV, AUV, or other subsea platform.
The ISD4000 is widely used across subsea operations, including ROV and AUV deployments, equipment monitoring, deflection monitoring, and motion referencing, where stable and precise depth and attitude data are essential.
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