If you have Veeder Root TLS 450 tank monitor, you might find this user guide video very helpful. It was prepared by AAFES (Army & Air Force Exchange Service) the worldwide retailer of fuels for US Army and Air Force installations. It’s excellent if you’re a Class A/B or C operator coming up to speed on how to use the tank monitor. Also, if you’re a UST inspector, you might also find this video very useful in getting ready for a 450 inspection. Note this is only for the 450 and not the 450 Plus. Enjoy and thanks Robert Largent and the gang at AAFES!