Reliably monitors 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. Fully compatible with MicroDock ll automated test and calibration system. Typical battery life of 13 hours @ 32° F; 8 hours @ -4° F. Recharges in 6 hours.