BW Technologies by Honeywell Yellow GasAlertMax XT II Gas Monitor with Rechargeable Lithium Battery is the smart, simple, economical way to compliance and is compatible with MicroDock II automated test, calibration system. Portable detector for combustible gas, oxygen, hydrogen sulfide and carbon monoxide gases has straightforward one-button operation with robust, motorized pump for intelligent, remote sampling and is perfect for confined spaces. Detector complete with semi-conductor pressure sensor and comes with standard event logging and data logging. It has integrated sampling pump with reliable diaphragm technology and supports English, French, German, Spanish and Portuguese languages.