型號 RECON/COfor0-1000ppmCO RECON/HSfor0-100ppm H2S RECON/O2for0-30%byVol.O2 RECON/EXfor0-100%LELCH4測量范圍0-1000ppmCO0-100ppmH2S0-30%byVolumeO20-100%LELCH4報警等級35and100ppminstant;TWA:25ppm,STEL:200ppm10and15ppminstant;TWA:10ppm,STEL:15ppm19.5%byVolumedecreasing,23.5%byVolumeincreasing10and50%LEL