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Old 28-09-2019, 08:31   #1
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Pressure sensor - water tank level

I have a Pico simarine system to hook up and I plan to connect a pressure sensor/transducer to measure the water tank level....

I know Safiery sells one...but I would like to have more options and if I can find a cheaper one.

Problem is....I don't know a lot about pressure sensing. So far I have learned that there is many different versions of these sensors. Some measure and output in Ampere and some in Volt, they are all made for different pressures...and while my tank is 20" high..that equals about 0.05 bar or 0.5PSI. Some sensors cover 0-5 bar...and some from negative to positive like -0.5 to + 0.5.

Some are differential sensors (safiery version is for example). My tank is vented. Do I still need differential sensor?

Anyone know what kind of sensor I would need? It needs to measure in Volt or resistance...connects to 1/2 NPT or 1/4.
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