These devices have key drawbacks. Water level indicators require manual pump operation and often waste power as multiple LEDs ...

The high side of the reading is the weight of the liquid, and the low side is connected to a second penetration at the top of the vessel to sense the head space pressure. Newer differential pressure ...

Water (or river) level is a measure the depth of water in a river at a specific location. Scientists also refer to the measurement of the level of water in a river relative to an arbitrary point (e.g.

These connect to an LX3302A inductive sensor IC, which reads the position of the copper slug inside the float. That simplifies the process greatly; [Mark] goes into great detail about the design ...