The Basic 2 Level Control BC Type is a switching device for pump control and supervision along with a display for 1 or 2 pumps in compact housing. The level is discovered with the use of a float switch, 4 to 20 mA analogue transmitter or integrated pneumatic pressure sensor. On the other hand, the Basic 2 Level Control BS Type is a switching device for pump control and supervision along with a display for 1 or 2 pumps in steel cabinet. The level is distinguished thru float switch, 4 to 20 mA analogue transmitter or integrated pneumatic pressure sensor.