Milking Vacuum Gauge, -0.1-0Mpa Vacuum Regulator, for Milking Machine Aquaculture Specification: Item Type: Milking Vacuum Gauge Material: Stainless Steel+Copper Measuring Range: -0.1-0Mpa Product Size: Approx. 6x7x3cm / 2.4x2.8x1.2in Thread Diameter: G1/4 Male Thread Weight: Approx. 85g / 3oz Product Use: Measure the vacuum degree of a small milking machine, install it on the milking machine and use it Package List: 1 x Milking Vacuum Gauge Note: 1.Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.