"MSA ALTAIR 4XR 10178357 CONFIGURED MULTI-GAS DETECTOR WITH 4-GAS CYLINDER, REGULATOR AND ALTAIR PUMP PROBE, LOWER EXPLOSIVE LIMIT, DIOXYGEN, CARBON MONOXIDE, HYDROGEN SULFIDE GAS, 0 TO 100%, 0 TO 30%, 0 TO 200 PPM, 0 TO 1999 PPM DETECTION"