Protects compressed air tools by digital display of compressor pressure can be mounted on the unit or on the compressor airflow adjustable flow rate by means of setting wheel features deviation 2 at 25 c measuring range 0 10 bar 0 150 psi 0 100 mpa power supply 2x lr44 dimensions 8 3 x 7 5 x 7 6 cm weight only 136 g including batteries