The AML 3 is THE most versatile, multi-sensor oceanographic instrument currently available. The AML-3 has three sensor ports on the endcap; sensor payload is modular and can be field-swapped to meet project requirements, for example SVP or CTD.

The AML-3 series of instruments is a highly configurable family
of multiparameter sondes designed for a wide range of data
collection applications. The ‘3’ designation refers to the number
of sensors that may be simultaneously installed on the instrument’s
endcap. One additional sensor may be connected externally, allowing
up to 4 sensors in total.

Typical Configurations include:

• Sound Velocity Profiling (SVP)
• Sound Velocity and Turbidity Profiling (SVP Tu)
• Conductivity Temperature & Depth (CTD)
• Sound Velocity / Conductivity Temperature & Depth (SVCTD)

The AML-3 comes in the AML-3 LGR and the AML-3 RT. While
nearly identical in size and form factor, the two configurations
differ in a few key features which specialize them for their
respective applications:

• The LGR designation (ie. AML-3 LGR) are self-powered via a
  rechargeable internal battery and have a mechanical on/off
  switch adjacent to their shackle. These instruments are most
  commonly used for multiparameter profiling applications and
  internally log sensor measurements and transfer data postdeployment.
• The RT designation (ie. AML-3 RT) stream data while in-situ (though they have the ability to internally record data as well).

Power and communication to these instruments is facilitated via a waterproof connector located adjacent to the shackle.