Min. Order Reference FOB Price
500 Pieces US$5.00-10.00 / Piece
Product Description
SSR04/SSR-04 Liquid Level Controller Relay Product Description The SSR04 uses 3 electrodes to fill or empty tanks, warehouses,and wells with pump motors. Normally, 3 electrodes are used: bottom, lower,and upper. If the warehouse or tank is made of metal, no bottom electrode is needed. In this case, ...