Abstract

Futsal game performance is strongly supported by the basic skills possessed by the players, futsal players must have good skills in some basic techniques. Goalkeeper is to minimize the opportunity of the opponent to score against his goal by using the right techniques and tactics, namely by catching the ball, blocking the ball, kicking the ball, and positioning the prime position. The results of observations that have been made by researchers, namely using observes and interviews with goalkeepers, referees and futsal coaches obtained conclusions stating that no tool can help the referee at the time of the first point penalty kick on futsal. The subjects of research are futsal goalkeepers academic futsal Cirebon and the referee asked Cirebon regency who already have a national referee license The result of this study is to produce a sensor tool product to detect the violation of the goalkeeper across the goal line on the first point penalty kick on futsal. result validation expert sensor, futsal and referee Dengan average scoreofeluruhan are "Good" which is 4.09% which has meaning in use. The test of small-scale product effectiveness with an overall average score is "Good" which is 79%. The large-scale product effectiveness test with an overall average score being "Good" was 71.5%. The conclusion of the research is to produce a product of developing sensor aids for the violation of the goalkeeper over the goal line on the first point penalty kick on futsal that can be used by the referee to help his performance.