3-1/8” backlit LCD gauges provide easy-to-read accurate measurements for system pressures. This gauge is capable of handling maximum pressures of 800 psi, so there are no worries about over-pressurizing. Pre-programmed with 21 of the most common refrigerants, the YELLOW JACKET Digital gauges will provide clear, swift and accurate pressure measurements for all your system applications. On its way to Piedmont, SC.