Simple operation, with SmartSample pump. GasAlertMax XT II reliably monitors up to four hazards and combines straightforward one-button operation with the robust, motorized SmartSample pump for intelligent, remote sampling, ideal for confined spaces. The GasAlertMax XT II is fully compatible with MicroDock II automated test and calibration system.BW Technologies by Honeywell,, (888) 749-8878.Circle 304