... life:>100,000 times 3.Simple installation 4.Widely Use Water Flow Sensor SZ3681.Low cost 2.Electrical life:>100,000 times ... of Barrel, Well & Trough. With resistance against the polluted water, it occupies the advantages for automatic ajustment, easy operation, simple ... protection. Rated Voltage (Current): 10(8A)250V~10(4A)380VApplication Temperature: 0°C-80°CControl Range: ≥0.2mElectrical life: ≥100, ...