... meter) Duct mount(Probe separable if you need, please remark, indoor air monitor controller ) ModelVAT930-CO2/XX-XX-XXVAT930-CO2-VOC ... humidity: 1/e(63%)change ,Slow flow rates<10sVOC: 20m2 indoor, for 10ppm ethanol<1min,for flue gas<5minAlarmSound and light ... humidity: 1/e(63%)change ,Slow flow rates<10sVOC: 20m2 indoor, for 10ppm ethanol<1min,for flue gas<5minAlarmSound and light ...