new 2-phase 220V 15A Pressure adjustment range 9 to 12 bar Suitable for :most air compressors. for domestic , pumps, compressors You can get a compressor control SK-22, with 13mm / 1/2-inch threaded connection. You get a mechanical pressure switch, as used in a workshop and in mobile compressors. The cut-off pressure is infinitely adjustable and it is a switch that can switch 3 phases at the same time. colour:black Material:ABS size: diameter: 10mm Package Contents: 1 * Pressure Switch Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.