Carbon: 0.00001%-10.0000% (can be expanded to 99.99999%)Sulfur: 0.00001%-6.0000% (can be expanded to 99.99999%)Complete function, easy to operateCarbon monoxide device is converted into a carbon dioxide deviceBetter sealing and purification effectHigh-precision pyroelectric infrared detectorDifferent electronic balances, same date interfaceIntelligent self-diagnosis
