Automatic water tank filling system

Remote Float is a wireless connection for a float switch, enabling remotely installed float switches to control pumps over great distances. When do we need this? Water tanks are often placed on high places so that we can take advantage of gravity.  There will be a pump somewhere to fill the tank.  But how does the pump know when to switch on?  Easy! – we connect a float switch in the tank so that it switches on the pump as soon as the water level drops.