The Model 501 CTD sensor features a rectangular form factor with integrated electronics, providing stable measurement of conductivity, temperature, salinity, density, and depth. The sensor includes a bottom cable entry with a permanently attached potted cable pigtail, offering a sealed and robust connection suited to long-term deployments and systems where fixed cabling is preferred. Its compact, integrated design reduces installation complexity while maintaining a durable form factor for subsea and mobile platform use.
The Model 501 includes an integrated pressure sensor for depth measurement and supports multiple cable options, including SubConn variants. Standard potted cable lengths are available, with extended lengths offered as a special order. The sensor is calibrated for standard (0 to 40°C) or extended (-5 to 60°C) temperature ranges, with conductivity measurement up to 60 mS/cm, ensuring suitability across a wide range of oceanographic conditions.
