The simple water level indicator circuit presented here makes this system automatic, i.e. it switches on the pump when the water level in the overhead tank goes low and switches it off as soon as the ...

Often, the only liquid level indicator you ... useful to have some kind of indicator light that can tell you the same. [Hulk] shows us how to build one for a water tank using a single IC and ...

The ITL-40 Tank Level Indicator accurately displays liquid volume for both water and foam tanks. Each ITL-40 has a super bright LED display easily viewable from 180 degrees with a visual indicator ...

The obvious answer is to measure the level of the tank, and there are plenty of ways to do that. However, [Liam Hanninen] has a different approach. Using a flow meter, he measures how much water ...

This valve has an emergency gas shut-off, gas level indicator and a built ... pour a cup full of warm or hot water down the side and feel how full the tank is by noticing where the metal feels ...