This is the first item's accordion body. TG 8000 GYRO COMPASS WITH CONTROL BOX The TG-8000 Gyrocompass features longer life and a diverse range of output signals, both the results of TOKYO KEIKI's extensive experience in design and manufacturing. The TG-8000, in space-saving compact form, consists of two units, a master compass and control unit. Longer life Low power consumption Compatible with NMEA 0183 signal Down sized High accuracy Conforms to IMO performance standards Compatible with IBS(Integrated Bridge System) www.smmarineservice.com