Industrial Scientific - M40-M

The M40•M multi-sensor monitor is designed for use in mines and other work environments to assure optimum personal protection against hazardous levels of oxygen (O2) and methane gas (CH4), as well as toxic levels of carbon monoxide (CO) and hydrogen sulfide (H2S).

Please read the PDF-file(s) above for more detailed information.

1-4 Gas monitor (O2, H2S, CO, CH4)
MSHA-approved for use in mines
75 Hours datalogging capacity
M-Cal Calibration Station compatible