Honeywell BW MicroDock II is an easy, cost-effective way to bump-test, calibrate, charge and manage records for BW portable gas detectors. The BW MicroDock II is compatible with BW GasAlertQuattro Series, BW GasAlertMicro 5 Series, BW GasAlert Extreme Series, Honeywell BW MaxXT II and Honeywell BW MicroClip Series