I would like to measure ater level in water tank. I have contacted some suppliers of Submersible Pressure Transmitter. They told me that it should work if sensor module can provide power between 2.7 and 5.5 Volts to the sensor and then read between 0.5 and 4.5V as an input then it will work. The sensor output is ratiometric to the supply voltage so if I provide 5V dc then it will give 0.5 to 4.5V output, if I provide 3V dc supply to it then the output will be 0.3 to 2.7V. (https://www.sensorsone.com/wp-content/uploads/2018/03/18.605G.pdf)
I also have found this: https://www.aliexpress.com/item/32791153600.html there is more versions. Is the best option for sensor module version 4-20mA?
It looks that both of them should work. I am not so familiar with electronics, so I would like to confirm if should work, because these sensors are not so cheap…
Thanks for any advice