GasAlertMicroClip XT II 4-gas detector. %LEL/O2/H2S/CO. 13 hours at 0°C, 8 hours at -20°C recharges in 6 hours battery life. GasAlertMax XT II is the smart, simple, economical way to compliance. GasAlertMax XT II reliably monitors up to four hazards and combines straightforward one-button operation, a robust, motorized pump for remote sampling and now features IntelliFlash, the flashing LED compliance indicator that tells you at a glance your gas detector is functioning correctly. The GasAlertMax XT II is fully compatible with MicroDock II automated test and calibration system. Includes detector complete with specified sensor(s), stainless steel alligator clip and concussion-proof housing, rechargeable battery, 3 ft/1 m calibration hose with quick connect, 10 ft/3 m sampling hose with particulate filter and quick connect, reversible screwdriver, kit of spare pump filters (5 particulate and 5 hydrophobic) and manual.