The model G-882 will connect directly to the Klein 3000 side scan sonar.  You will have to verify with Klein that your side scan has been set up to work with a magnetometer (power and data link to the multiplexer.) 

You will also need to get the following items from us (list prices, some items available for rent, certainly items 3 and 4, we are checking on item 2.  Item 1 must be purchased):

1. Klein attachment kit, P/N 50060-01
2. 9meter umbilical cable for attachment of G-882 to sonar, P/N 50032-60
3. Magnetometer with depth sensor, P/N G-882
4. Depending on how you plan on handling the magnetometer data, you may require a copy of MagLogLite, P/N 25472-01
5. See our website for rental rates. 

Normally the magnetometer data is brought to the Klein computer via the multiplexer over coax cable and then demultiplexed and reconstructed for transmission to a second computer running MagLogLite.

Please start by checking with Klein to make sure the 3000 is set up for magnetometer integration.