1. professional manufacture 2. CE, CCC, RoHS certification 3. 10 years ... current up to 5A as controlling start and stop of remote and widely used in wharf, machine tools, textile machineries, ... lines, 8 lines, 6 lines, 4lines, 2 linesWork environ ment 1.Environment temperature:-25~+55 2.Air relative humidity : ≤85% 3Normal ... vibration frequency is 2-80HZ, the acceleration is 0.79; remote control switch