RAE Systems QRAE III Calibration Gas 34L 600-0050-007 Confined Space Gas Monitor It is fully compatible with

It is fully compatible with BW gas detectors requiring H2S sensor calibration

or if a chemical liquid has been sucked into the unit

the hood can be easily replaced

LEL/O2/combo H2S & CO/NH3 400 ppm with 100-240 VAC charger

FR treated for up to 25 washes

RAE Systems QRAE III Calibration Gas 34L 600-0050-007 Confined Space Gas Monitor It is fully compatible withThis is the calibration gas for the QRAE III, which comes in a 34L aluminum cylinder. The canister features 50% CH4, 18% O2, 10 PPM H2S, 50 PPM CO, and balance N2. This calibration gas has a shelf life of twelve months. FAQs: How Often Do I Need To Calibrate My Monitor? Note: This item ships via UPS Ground due to HazMat restrictions and isn't available for expedited shipping. Calibration gas is not returnable. Please check your selection carefully