Features:

 

Input from conductive or floating point level sensor, polarization protection, adjustable working mode, adjustable sensitivity, one limit level, one 8A/250V SPDT relay output, for pump or electromagnetic valve control, 220V AC power supply, dimensions 70x85x60mm, 35mm DIN rail mountable; IP30
 

Type A/ Level controller between two levels with one relay output for "filling" or "emptying"
 

Type B/ DLC-06-AL Level alarm with one level, respectively one relay output