Electronic scoreboard indicator possession time of possession, consisting of a kit consisting of the following elements:Two modules of two digits of 27 cm. of each height. These modules are ready for placement on the floor. Have indicators of time of possession. Made with special treatment to withstand the atmospheric conditions in the sports hall with pools, in which chemicals for water treatment acting on all metallic materials that exist around them. Food at 24 V. Approximate Exterior Dimensions: 50 x 40 x 10 cm.A command and control table equipped with highly sensitive buttons antirrobote. Manual and automatic horn 110 dB to ensure your hearing.