RAE Systems MCB3-A3C112E-420 MULTIRAE PRO,CSA.PGM-6248.10.6EV, 2000PPM.LEL.H2S (0.1-100 PPM).CO (0-500 PPM).O2.900MHZ WIRELESS.LI-ION BAT. W/ ALK. ADP..MONITOR ONLY by Honeywell
SKU: RAE-MCB3-A3C112E-420