... reasonable structure, advanced, contact capacitance. TNHAI-A Series (Rain-proof type) Crane Remote ControlAC-15500V~2A250V~5APlastic shell, beautiful, strong ... than violations of the environment and staff operation of wet places, such as long-distance remote control of electric hoist, open ... and snow for use.No explosion hazard medium, and medium without adequate corrosion of metal, rubber,damage and ...