BW Technologies Yellow GasAlertMicro 5 IR Gas Monitor with Lithium Polymer Battery and Pump is compatible with BWª MicroDock II automatic test, calibration system. Detector with data logging models to store and recall event information features optional integral motorized pump option provides remote sampling. Detector for combustible gas, LEL, oxygen, hydrogen sulfide, carbon monoxide and sulphur dioxide gases has large, user selectable backlit LCD and supports multi-languages like English, French, German, Spanish and Portuguese. Detector has water-resistant design with integral concussion-proof enclosure and wide range of user selectable field options with password protection, safe and stealth modes. It has triple alarms with low, high, TWA and STEL alarm levels and is powered by three AA alkaline batteries or a hot-swappable rechargeable battery pack. DUE TO THE SHELF LIFE OF GAS SENSORS, MOST MULTI GAS MONITORS ARE MADE TO ORDER BY THE MANUFACTURER. PLEASE ALLOW EXTRA TIME FOR DELIVERY OF THIS PRODUCT.