The Model 851 Digital Imaging Sonar was designed for use with the smallest of ROV’s. For maximum flexibility, this is a split head design with a fluid filled front end and a pressure housing for the electronics. The unit requires approximately 2.5 Watts from 24 VDC, or optional 48 VDC. Serial communication is utilized, RS-485 or RS-232 at 115.2 kbps. This unit will scan a maximum of 306o with a maximum range of 50 meters. The total weight in water is less than 0.3 kg (0.6 lbs).
851型数字成像声纳系统被设计用于提供最大的灵活性，最小的ROV的。，这是一个分裂的头部设计与一个充满液体的前端和一个电子压力壳体。单位需要从24伏直流电约2.5瓦，或可选的48伏直流电。串行通信采用RS-232，RS-485或115.2 kbps。本单元将以50米的最大射程最大306o扫描。在水的总重量小于0.3公斤（0.6磅）。