INDICATOR

PROBLEM TO BE SOLVED: To provide an indicator that can be easily mounted and maintain a secure conduction status.SOLUTION: The indicator includes an indicator body comprising a front side case and a backside case. The front side case and backside case are provided with: an engaging means which can engage one end of the right or left each other under the condition of the front side case and backside case opening and can rotate each other in the direction where the front side case and backside case are closed while maintaining the engaging means; and a fixing means which fixes the front side case and the backside case at the other end side under the condition of the front side case and backside case closed to conduct with a conductive cable which sends signals to and supplies electric power to the indicator under the condition of the front side case and backside case closed.