1) Ideal for level control for industrial facilities and equipment. 2) Outputs can be set to self-hold at ON or OFF using self-holding circuits. 3) Sensitivity adjustment of operating resistance from 10 to 100 k for application to a wide range of liquids. 4) Delay timer to prevent relay contact chattering caused by waves. 5) Models with a wide AC power supply range (100 to 240 VAC) and 24 VAC/DC reduce the number of level controller models kept in stock. 6) CE marking, cUL recognized. 7) Easy wiring with ferrules : 2 x 2.5 mm2 solid or 2 x 1.5 mm2 standard ferrules.