Pump Wiring: Connect the 220V AC pump to the relay’s Normally Open (NO) and Common (COM) terminals. Make sure the live (L) ...

The whole project was developed on a friend’s request. Its purpose was to remotely monitor the water-level in a metal tank located in the attic by means of a very simple control unit placed in the ...

For setups that rely on stored water, clear awareness of tank level and water quality is essential. Traditional level ...

Author Ejaz ur Rehman describes a an extremely simple water-level maintainer that keeps the water level between two predefined levels using an LM311. Here's an extremely simple water-level maintainer ...

The circuit was intended for monitoring and measuring the fluid level or content in a storage tank or reservoir by providing visual display with an audible alarm that can be switched. Light Emitting ...