MULTI GAS MONITOR M40

MULTI GAS MONITOR M40 Dimensions : 10.9 cm X 6.22 cm X 3.48 cm ( 4.30' ' X 2.45' ' X 1.37' ' Weight : 244 g ( 8.6 oz ) . Weight with pump : 326 g ( 11.6 oz ) SENSOR : Combustible gases - Catalytic Diffusion Oxygen and Toxic Gases - Electrochemical Measuring Ranges : Carbon Monoxide ( CO ) : 0 to 999 ppm in 1 ppm increments Hydrogen Sulfide ( H‚ S ) : 0 to 500 ppm in 1 ppm increments Oxygen ( O‚ ) : 0 to 30 % of volume in 0.1 % increments Combustible Gases ( LEL ) : 0 to 100% LEL in 1% increments The M40 features LEL over-range protection Power Source ( Run Time ) : Rechargeable Lithium-ion ( Li-ion ) Integral Battery ( 18 hours typical , 12 hours with SP40 parasitic Pump ) Datalogging : Up to 75 hours of datalogging capability Temperature Range : -20º C to 50° C ( -4° F to 122° F) Humidity Range: 15 to 95% RH, typical, 0 to 99% RH intermittent ( non-condensing)