I am not an operator and don’t have the knowledge to fully test myself. I did purchase from a local operator. I do a lot of business with them and they always have well cared for gear. Not saying it won’t need adjustments but, it looks like a nice clean unit. Sold as is. Everything you see in the pictures is what is included in this lot. Photos are the best description. Please look at ALL pictures closely before purchasing. We will document any damage the best we can but the photos will always be the best way to exam the item. Items may need a more in depth cleaning. We will do our best to clean every item, although sometimes we can’t do a full thorough clean. Message us for additional photos or questions. We are a large store please allow up to 3 business days for your item to go out. We of course will get them out as fast as we can. If you ever have a concern, PLEASE MESSAGE US before leaving negative feedback. We will help resolve whatever issue you are having. We try very hard to provide good communication and always strive for everyone to have a positive experiences!!