QRAE 3 Gas Monitor, LEL, H2S, CO, and O2, datalogging, non-wireless

QRAE 3 with LEL, H2S, CO, and O2 sensors, calibration tube, external filters (1 installed, 3/pk replacement), Li-Ion battery, travel charging/download cradle, computer interface cable, universal wall adapter, ProRAE Studio II Software Requires calibration using appropriate calibration gases and regulator sold separately. RAE No. M020-11111-111