This is an Airmar 31-199-1 Rev 4
transducer, new, never used. It is a 200khz
transducer with a 3 pin
plug that was originally intended for a KVH system, but can be used with any other system that also can be configured to use a 200khz transducer (e.g. Raymarine).
Includes FREE blanking plug!
Asking $25