... rain, snow and much dust for remote control of crane, electric block and other equipments.2. Main technical parametersProperty1)Operational temperature: -5 ... 6 8 - - DC-13 - 0.3 0.6 1.3 2.53. Structure and performances:COB series button adopts full-plastic ... Item: .COB61,COB61A, COB62, COB62A, COB63, COB63A, COB64 ,COB64A,COB65Production: Control Station, Control Switch, COB 61 COB62 COB63 COB64 COB65