The navigation sounder DS228 is an ultrasonic echo sounder for ships, which uses ultrasound to measure the depth of the water when the ship is stationary or sailing, so that the staff on board can understand the real-time water depth situation and avoid the ship running aground.

DS228 has two channels, color echo display, clear picture, simple operation, strong reliability, can continuously and stably measure underwater depth, and draw echo image. DS228 also has shallow water alarm, data storage, historical playback, data output and other functions.

DS228 conforms to the International Maritime Organization specification and IEC61162 standard, and can be widely used in international and domestic navigation and inland navigation.