I`m building an underwater robot, and need a method to measure the water pressure (to determine depth). I have got a Motorola pressure sensor, but they say it may not survivie long in slat water. Any other suggestions/ideas, I did think about a FSR (force sensing resistor) but not sure how they will do in salt water either...
I`m working on a small budget so I don`t want to spend hundreds of dollars on a sensor.