# Measuring water level

**URL:** <https://forum.arduino.cc/t/measuring-water-level/1353722>\
**Category:** Sensors\
**Created:** [February 13, 2025, 9:20pm UTC](https://forum.arduino.cc/t/measuring-water-level/1353722 "2025-02-13T21:20:37Z")\
**Posts on this page:** 8\
**Page:** 3

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**Author:** ![Bobsbeer](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/bobsbeer/32/1013044_2.png) [@Bobsbeer](https://forum.arduino.cc/u/Bobsbeer)\
**Post date:** [February 22, 2025, 9:16am UTC](https://forum.arduino.cc/t/measuring-water-level/1353722/41 "2025-02-22T09:16:16Z")

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The drop in sensor detects the pressure at the bottom of the container and converts that to a signal. The one I have has a range of 0-5m which is a bit too much. I have seen on Aliexpress similar ones with a 1m range which should be more accurate. This is the link to the PiHut one I have. [PiHut Sensor](https://thepihut.com/products/gravity-industrial-stainless-steel-submersible-pressure-level-sensor-0-5m?variant=42071119233219&country=GB&currency=GBP&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&gad_source=1&gclid=CjwKCAiAiOa9BhBqEiwABCdG8_Uco1aTGU4NyebOSJv3YiRPuW2vLxFCftqqEHFsgwjYhGH9ea6eqRoCFigQAvD_BwE)

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**Author:** ![Bobsbeer](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/bobsbeer/32/1013044_2.png) [@Bobsbeer](https://forum.arduino.cc/u/Bobsbeer)\
**Post date:** [February 22, 2025, 9:17am UTC](https://forum.arduino.cc/t/measuring-water-level/1353722/42 "2025-02-22T09:17:22Z")

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How have you mounted the sensor gy5000? Is it in the liquid?

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**Author:** ![anon50242852](https://avatars.discourse-cdn.com/v4/letter/a/a9adbd/32.png) [@anon50242852](https://forum.arduino.cc/u/anon50242852)\
**Post date:** [February 22, 2025, 9:34am UTC](https://forum.arduino.cc/t/measuring-water-level/1353722/43 "2025-02-22T09:34:23Z")

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No. My tank has a tap at the bottom which I screw it into. FYI. I didnt know if a pressure transducer would work for such a small head of fluid but it does.

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**Author:** ![Bobsbeer](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/bobsbeer/32/1013044_2.png) [@Bobsbeer](https://forum.arduino.cc/u/Bobsbeer)\
**Post date:** [February 22, 2025, 10:39am UTC](https://forum.arduino.cc/t/measuring-water-level/1353722/44 "2025-02-22T10:39:42Z")

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Thanks. I wonder if that type of transducer would work by placing the transducer above the container and using a tube going down to the bottom of the container. I would have thought that the sensor would read the volume pressure rather than external pressure as long as the tube was sealed to the transducer.

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**Author:** ![hammy](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/hammy/32/238813_2.png) [@hammy](https://forum.arduino.cc/u/hammy)\
**Post date:** [March 6, 2025, 9:22am UTC](https://forum.arduino.cc/t/measuring-water-level/1353722/45 "2025-03-06T09:22:54Z")

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I think this is rapidly falling into a “ not worth the hassle “ project .  
Just park the container where you can see it out of the window or put a camera looking at it

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**Author:** ![TomGeorge](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/tomgeorge/32/215261_2.png) [@TomGeorge](https://forum.arduino.cc/u/TomGeorge)\
**Post date:** [March 6, 2025, 9:46am UTC](https://forum.arduino.cc/t/measuring-water-level/1353722/46 "2025-03-06T09:46:23Z")

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A head of 50cm would produce a presure of;

- **4.91 kPa**
- **0.71 psi**
- **0.0491 bar**

Tom.... 😃 👍 ☕ 🇦🇺

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**Author:** ![heino89](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/heino89/32/1126741_2.png) [@heino89](https://forum.arduino.cc/u/heino89)\
**Post date:** [March 6, 2025, 9:58am UTC](https://forum.arduino.cc/t/measuring-water-level/1353722/47 "2025-03-06T09:58:07Z")

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Hi,  
I don't know if it's already been mentioned, I just skimmed the thread.  
But if it is a plastic tank, you can have a look at the FDC2112 from TI.

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [September 2, 2025, 9:58am UTC](https://forum.arduino.cc/t/measuring-water-level/1353722/48 "2025-09-02T09:58:40Z")

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