Specification:Chint NJYW1-NL1Floatless Relay (Water level control)Voltage Range(V): 220/380Operating mode: Continuous workingConducor length: Max 1 kmResponse time: Reacting: max 80ms; releasing: max 160ms1 tank upper or lowerPower consumption: 3VAFeature:NJYW1 Series Floatless Control Relay is used..