With three operating modes, the GX-2012 from RKI Instruments can be used for confined-space safety monitoring in its normal operating mode, for leak investigation in leak check mode, and for underground leak checking in bar hole mode. When equipped with an optional TC sensor, it can measure 100 percent volume methane and dynamically auto-range from percent LEL to percent volume, making it ideal for line purge testing. It is RKI’s smallest personal one- to five-sensor gas monitor with a built-in sample pump. Weighing only 12.3 ounces, it can monitor the standard confined-space gases (LEL combustibles, oxygen content, carbon monoxide and hydrogen sulfide). Its large LCD display shows all gas readings, battery level, current time, and will automatically backlight in alarm conditions. Standard alarm types include vibration, visual and audible alarms, which can be set to latching or nonlatching. 800/754-5165; www.rkiinstruments.com