Features: OOTDTY   This air regulator with a gauge has an air adjustment range of 0 to 200 PSI. With a standard 1/4" interface, can help to save electric energy. With the barometer, can be set and read the data. Easy to install and disassemble. Air compressor pressure switch control valve is designed to control and adjust air compressor pressure and better for high efficiency working. Specifications: Material:Alloy Steel Size: As Picture Shown Package Includes: 1 x Air Pressure Controller with Pressure Gauge Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.