EKE 347, Liquid level controller 080G5000| Supply voltage: 24 V a.c. +/-20% 50/60 Hz or 24 V d.c. +/-20%. Relay output: 3 pcs. SPDT (Lower level alarm, Upper level alarm, Common alarm / NC Solenoid). Current output: 0-20 mA or 4-20 mA. Valve connection t.