Often, the only liquid level indicator you need is your eyes, such as when looking at your cold beverage on a summer’s day. Other times, though, it’s useful to have some kind ...

In the water level sensor schematic, the common probes connecting the underground tank and the overhead tank to +9V supply are marked ‘C’. The other probe in underground tank, which is slightly above ...

In the loop () we check to see if the water level has reached any sensor and if so then turn an the corresponding led. We also use the LCD to display HIGH if the water has reached the highest poing, ...

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 ...

The coffee maker which [Donald Papp] uses every morning has a water reservoir on the back that can last for several days. This means he forgets to check it and from time to time will return to find… ...

Tokyo Electric Power Co. said it will install water level gauges on all flange-type tanks storing radioactive coolant at the Fukushima No. 1 nuclear plant by the end of November, to enhance ...