Im working on a project related to runoff. I have a flume and a rain simulator. What I want to do is to measure the depth of the water at anypoint I want. I will examine the changes of the runoff depth with time. Water depth may be about 3 mm. So measurement range is about 0 to 10 cm and accuracy is %1.
Which devices would you like to prefer me? And how can I find them?
Check out the link I paste here. I had tested this for varying level of water and through flowing river.. Its output is either voltage, current RS232 or RS485.
**broken link removed**
XM-A series 3-wire ultrasonic level meter
XZY-RS Ultrasonic Level Meter Local display