Expert Quality, new and improved MK4 airline inflator. Its industrial quality fabrication makes it suitable for use on garage forecourts and tyre fitting bays. Fitted with a lock-on connector, 20% larger viewing window, stronger yet lighter body and increased accuracy. Supplied with calibration certificate. Pressure range 0-9.6bar/0-138psi. Min air supply 6.9bar/100psi. Max air supply 13.8bar/200psi. Operating temp range 10 to 60 degree C. Supply inlet 1/4" BSP taper (F). Hose length 0.5M.