The sentry Gun is a security device that definitively adds to property security. Its use is suitable for the most different environments. When criminals see that the property has a Sentry Gun, will prevent any damage to property. Before shooting, the owner of the Sentry Gun can activate the laser at the miscreant in order to disperse him, otherwise you can use the same laser to help your aim. The sentry Gun also has soft aiming. It is a multi-use device with several applications as well as services that can be added. Services such as monitoring by a security company; The cost is minimal as it only consumes electricity and the co2 gun refill is very cheap and much more effective than having, for example, a dog on site. For projects that have a high value saved, it will keep criminals out until the police arrive, giving you valuable time as the sentry gun does not die and you can exchange shots with criminals at will. Sentry Gun's software also allows the person to control as many as necessary at a time. The initial niche would be condominiums, houses and commercial establishments. Everyone who saw it showed a strong interest in purchasing an armed security guard today in Salvador/BA USD1500.00 considering the need to cover the 3 shifts would be USD4,500.00 monthly. A sentry gun will be owned by the customer and will have the same effectiveness, only with the cost of the light and possible reloading of the gun, which has a very low cost.