... Cer: ISO9001,RoHs Delivery: 1000 pcs 14days liquid float level sensor Advantage and applications Classic design,compact size;Choice of normal ... liquid height–a preset level condition. Generally, this type of sensor functions as a high alarm, signaling an overfill condition, or ... comes close to the two contacts, they draw together and touch, allowing current to pass through. When the magnet is moved ...