Features:1. 1/4 BSPT back connection.2. Brass components has good resistance and durability.3. The transparent cover offers clear readings and better protection of the dial.4. Good air tightness guarantee the accurate measurement.5. Suitable for air, water, oil, gas, and other media. Specification:Mounting Thread: 1/4 BSPTRange: 0-15PSI,0-1Bar / 0-30PSI,0-2Bar / 0-60PSI,0-4Bar / 0-100PSI,0-7Bar / 0-160PSI,0-11Bar / 0-300PSI,0-20Bar (Optional)Product Size: Approx 5.1x4.8x4.8cm / 2x1.9x1.9inPackage Weight: Approx 90g Package List:1 x Pressure Gauge