Depth Sensors offer accurate depth measurements to 7000 m and have deployed for use in wave & tide gauges, tsunami detection, ocean current surveys, seabed subsidence, inverted echo sounders and towed arrays. This features anti-fouling pressure port and non-corrosive plastic housing. Depth sensors are designed to measure temperature compensated water level with an accuracy of 0.15% and 12-bit resolution. Depth sensors are used for monitoring the streamer profile. The depth sensors are connected to a logger and allow continuous information on water level changes over a short time period.