The Dwyer LPTK Gas Pressure Test Kit is ideal for testing LP and natural gas lines and controls. The kit's gauge shows if proper pressure is present or if a leak exists. The LPTK Gas Pressure Test Kit is available in two different gauge ranges, and each gauge is 3% full scale accurate with an easy to use calibration screw on the back of the gauge. It is easier to use than a manometer, and includes a sturdy case for added durability and safe handling.