Sensore Livello Liquido Senza Contatto Allarme Acqua Interruttore Induzione Rilevatore DC 5-30V
"Normal Open": Output signal when liquid is detected ; "Normal Closed": Output signal when no liquid is detected. The sensor should be connected to a load less than 0.2A(alarm light, small relay,pull-up resistor, optocoupler.etc. ).