This mini pressure gauge is compatible with the BlowTie 2 spunding valve, Duotight in-line regulator, and KegLand mini regulator. We recommend using the gauge with a range closest to your desired pressure setting. Pressure Range: 0-15 psi (0-1 bar). Body Dimensions: 26mm x 26mm x 15mm . Probe Diameter: 8mm . WARNING: Do not exceed gauge pressure. Exceeding the pressure range will damage the gauge.