Honeywell BW™ Calibration Gas Regulator with male connection provides a steady 0.5 LPM flow for use with Honeywell's disposable aluminum calibration gas cylinders (and certain steel models). This regulator can be used to calibrate GasAlertClip Extreme, GasAlert Extreme, GasAlertMicroClip XT, GasAlertQuattro, IQ Force™, GasAlertMax XT II and GasAlertMicro 5 Series gas detectors.