GasAlertMax XT II 4-Gas Monitor XT-XWHM-Y-NA from BW Technogies by Honeywell. Four gas monitor sensors: H2S, CO, O2, and %LEL combustibles. One-button operation with robust, motorized pump. 2.8" wide x 2" deep x 5.1" tall, weight just 11.5 oz. Water resistant. Fully compatible with MicroDock II automated test and calibration system.
